{"title":"Stone Exhaust","description":null,"products":[{"product_id":"stone-exhaust-volvo-v316-xc40-t4r-t5r-2-0t-eddy-catalytic-downpipe","title":"Stone Exhaust Volvo V316 XC40 T4R\/T5R 2.0T Eddy Catalytic Downpipe","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eMeet the latest patented technology that adheres to the world's increasingly stringent environmental regulations, at the same time enhances performance to another level on your Volvo V316 XC40 T4R\/T5R. In comparison to commercially available linear frustums, the \"eddy catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of conventional straight downpipes, the patented eddy catalytic technology can effectively increase horsepower and torque. In the lower rpm you will be immerse with vast amount of torque until you reach higher rpm where the vortex effect really comes to life and opens up the Catalytic, resulting in a performance similar to a 100 CELL Catalytic. However in the lower rpm, the catalytic will produce efficient and clean emission similar to a 400CEL Catalytic and produce no Check Engine Lights, completely error free.\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNo more delayed in power delivery\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eComputer simulation to obtain the best diameter.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpecial 3D design to achieve 100% OEM fitment, no modification required.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSUS304 Premium Grade Stainless steel.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDual Cross-Welding Technology providing substantial increase durability at the turbo Flange.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/article\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the 2.0T Exhaust Systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust System UK Bending\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility - 2.0T Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eV316\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eXC40 T4R (2019\u003c\/span\u003e\u003cspan\u003e+)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eXC40 T5R (2019\u003c\/span\u003e\u003cspan\u003e+)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eStone Exhaust\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003ePart number \u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003eO204E\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64544431604061,"sku":"O204E","price":1948.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/Image-Coming-Soon_1760c7eb-2914-4368-b31c-268364057c4c.png?v=1777341792"},{"product_id":"stone-exhaust-ford-1-5t-mk4-focus-dual-exit-single-tailpipe-valvetronic-catback-exhaust-system","title":"Stone Exhaust Ford 1.5T MK4 Focus Dual Exit Single Tailpipe Valvetronic Catback Exhaust System","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWe are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System, to enhance the performance and sound of your Ford MK4 Focus with the 1.5T engine.\u003cbr\u003e\u003cbr\u003eStone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With our in-house dyno, your Ford exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.\u003cbr\u003e\u003cbr\u003eThe Cat-Back Valvetronic System comes with a separate remote controller that gives you full control of the exhaust, allowing you to open and close the valves with a click of a button. You can also set it in auto mode for the valves to open at a certain rpm automatically. The Stone Valvetronic system is a plug and play system, and connects to your OBDII port, which can be installed within a few minutes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eValvetronic System\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003eMachine Welding\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemote Control with On \/ Off \/ Auto settings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDyno Developed In House\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003espan\u0026gt;Eliminates drone found on the standard exhaust system\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOPF Delete\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eStone offers an OPF delete, which can be included free of charge, this allows you to install the Stone Cat-Back exhaust system on OPF equipped cars without throwing an error code, thus coding out the OPF error code on the ECU is not required.\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the 1.5T Exhaust System found on the Ford MK4 Focus 1.5T. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707_2048x2048.jpg?v=1572705528\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValvetronic System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stone Valvetronic System was independently researched and developed in house. The system forgoes the conventional design of complicated wiring and the rubber inside the valve which is prone to aging, to ensure longevity.\u003c\/p\u003e\n\u003cp\u003eWith the Valvetronic remote control providing three modes to choose from: ON \/ OFF \/ AUTO, this allows for instant switching between modes in accordance to driving conditions faced. So, let the STONE Valvetronic System adapt to your vehicle’s needs.\u003c\/p\u003e\n\u003cp\u003eThe Valvetronic remote control has 3 modes, ON \/ OFF \/ AUTO, which allows you to open and close the valve at a click of a button. The Auto mode allows customization of the opening and closing of the valve at a predefined RPM.\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Ford 1.5T MK4 Focus Valvetronic Catback Exhaust System - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/S__53968900_2048x2048.jpg?v=1591014788\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending_2048x2048.jpg?v=1572739395\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800 to 1100 which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_2048x2048.jpg?v=1572828150\" width=\"2048x2048\" height=\"2048x2048\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_2048x2048.jpg?v=1572828178\"\u003e\u003c\/div\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eCompatibility\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003e1.5T Engine\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eFord MK4 Focus 1.5T (2018+)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eStone Valvetronic System Installation \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"1195\" height=\"672\" src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eFP526BS (Requires Focus ST Diffuser)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64544627425629,"sku":"FP526BS","price":3034.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/FORDFOCUSMK41.5OC1_7cb22cd6-bd35-4959-b561-a33502e88814.png?v=1777347836"},{"product_id":"stone-exhaust-bmw-b58-b58c-g01-g02-cat-back-valvetronic-exhaust-system-x3-m40i-xdrive-x4-m40i-xdrive","title":"Stone Exhaust BMW B58 B58C G01 G02 Cat-Back Valvetronic Exhaust System (X3 M40i xDrive \u0026 X4 M40i xDrive)","description":"\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003eWe are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System with Dual valves, to enhance the performance and sound of your BMW G02 SAC X3 M40i xDrive \u0026amp; X4 M40i xDrive with the B58 engine.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With their in-house dyno, your BMW exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eThe Cat-Back Valvetronic System comes with a separate remote controller that gives you full control of the exhaust, allowing you to open and close the valves with a click of a button. You can also set it in auto mode for the valves to open at a certain rpm automatically. The Stone Valvetronic system is a plug and play system, and connects to your OBDII port, which can be installed within a few minutes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eStone Valvetronic System Installation \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eValvetronic System\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical Welding with Precision\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003eRemote Control with On \/ Off \/ Auto settings\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDyno Developed In House\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEliminates drone found on the standard exhaust system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eBMW G02 B58 X4 M40i xDrive with Eddy Catalytic DP + Valvetronic Cat-back Exhaust System Sound\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/71BV00wGApc\" height=\"315\" width=\"560\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eFitted Photo(s) - Dual Exit with Quad Tailpipes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_BMW_B58_G02_X4_M40i_xDrive_Cat-Back_Valvetronic_Exhaust_System_Stone_Exhaust_USA_600x600.png?v=1598433208\" alt=\"Stone Exhaust BMW B58 G02 X4 M40i xDrive Cat-Back Valvetronic Exhaust System | Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_BMW_B58_G02_X4_M40i_xDrive_Cat-Back_Valvetronic_Exhaust_System_Stone_Exhaust_USA-1_600x600.png?v=1598433233\" alt=\"Stone Exhaust BMW B58 G02 X4 M40i xDrive Cat-Back Valvetronic Exhaust System | Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_BMW_B58_G02_X4_M40i_xDrive_Cat-Back_Valvetronic_Exhaust_System_Stone_Exhaust_USA-2_600x600.png?v=1598433257\" alt=\"Stone Exhaust BMW B58 G02 X4 M40i xDrive Cat-Back Valvetronic Exhaust System | Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_BMW_B58_G02_X4_M40i_xDrive_Cat-Back_Valvetronic_Exhaust_System_Stone_Exhaust_USA-3_600x600.png?v=1598433273\" alt=\"Stone Exhaust BMW B58 G02 X4 M40i xDrive Cat-Back Valvetronic Exhaust System | Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_BMW_B58_G02_X4_M40i_xDrive_Cat-Back_Valvetronic_Exhaust_System_Stone_Exhaust_USA-4_600x600.png?v=1598433312\" alt=\"Stone Exhaust BMW B58 G02 X4 M40i xDrive Cat-Back Valvetronic Exhaust System | Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_BMW_B58_G02_X4_M40i_xDrive_Cat-Back_Valvetronic_Exhaust_System_Stone_Exhaust_USA-5_600x600.png?v=1598433328\" alt=\"Stone Exhaust BMW B58 G02 X4 M40i xDrive Cat-Back Valvetronic Exhaust System | Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOPF Delete\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eStone offers an OPF delete, which can be included free of charge, this allows you to install the Stone Cat-Back exhaust system on OPF equipped cars without throwing an error code, thus coding out the OPF error code on the ECU is not required.\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the B58 Exhaust System found on the G02 X4 M40i xDrive. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValvetronic System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stone Valvetronic System was independently researched and developed in house. The system forgoes the conventional design of complicated wiring and the rubber inside the valve which is prone to aging, to ensure longevity.\u003c\/p\u003e\n\u003cp\u003eWith the Valvetronic remote control providing three modes to choose from: ON \/ OFF \/ AUTO, this allows for instant switching between modes in accordance to driving conditions faced. So, let the STONE Valvetronic System adapt to your vehicle’s needs.\u003c\/p\u003e\n\u003cp\u003eThe Valvetronic remote control has 3 modes, ON \/ OFF \/ AUTO, which allows you to open and close the valve at a click of a button. The Auto mode allows customization of the opening and closing of the valve at a predefined RPM.\u003c\/p\u003e\n\u003cp\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/valvetronic_4bbd64f4-a300-4728-beae-be9da6be047f_480x480.png?v=1619576730\" alt=\"Valvetronic System | Stone Exhaust USA\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/valvetronic_4bbd64f4-a300-4728-beae-be9da6be047f_480x480.png?v=1619576730\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending_480x480.png?v=1619575566\" alt=\"7 Axis CNC Bending Machine | Stone Exhaust USA\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending_480x480.png?v=1619575566\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility - B58\/B58C Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBMW X Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eG01 X3 M40i xDrive (2017+)\u003c\/li\u003e\n\u003cli\u003eG02 X4 M40i xDrive (2017+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003cp\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAP545SQ (Non-OPF)\u003c\/p\u003e\n\u003cp\u003eAP545GSQ (OPF)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust 2\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eYear Warranty\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimension \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e110cm x 30cm x 60cm \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e28.55 kg \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmission Notice \u003c\/strong\u003e\u003c\/p\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003cspan\u003e\u003cspan\u003eVarious U.S. states and the U.S. federal government have individual laws regulating the use of aftermarket exhaust parts and system, especially when the stock system is modified, remove, or if you are replacing original catalysts. Please consult the appropriate law department in your area before installing any aftermarket part or system on your vehicle to ensure compliance with all applicable laws. The purchasers are entirely responsible for informing themselves of the applicable laws where the products are to be used and to comply with those \u003c\/span\u003e\u003c\/span\u003elaws.\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003cspan\u003e\u003cspan style=\"font-weight: 400;\"\u003eIf you are residing in Europe, Stone’s cat-back exhausts are OPF-compatible, which means you won’t need to code out the OPF or worry about losing your warranty.\u003c\/span\u003e\u003c\/span\u003e\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Non-OPF \/ Flat Cut Gloss Carbon Fiber (102mm)","offer_id":64544661733725,"sku":"AP545SQ-1020CG","price":4802.81,"currency_code":"GBP","in_stock":true},{"title":"OPF \/ Flat Cut Gloss Carbon Fiber (102mm)","offer_id":64544661766493,"sku":"AP545GSQ-1020CG","price":4802.81,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/BMWG02B58CX4M40iXOC02_cc549ba9-c3a2-4bec-a8e0-cc35d7cc8b15.png?v=1777348146"},{"product_id":"stone-exhaust-mini-b48-b48e-f60-countryman-jcw-cat-back-valvetronic-exhaust-system","title":"Stone Exhaust MINI B48 B48E F60 Countryman JCW Cat-Back Valvetronic Exhaust System","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eWe are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System, to enhance the performance and sound of your MINI MINI F60 Countryman JCW with the B48\/B48E engine.\u003cbr\u003e\u003cbr\u003eStone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With our in-house dyno, your BMW exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Cat-Back Valvetronic System comes with a separate remote controller that gives you full control of the exhaust, allowing you to open and close the valves with a click of a button. You can also set it in auto mode for the valves to open at a certain rpm automatically. The Stone Valvetronic system is a plug and play system, and connects to your OBDII port, which can be installed within a few minutes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch4\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eValvetronic System\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOPF Exhaust Option Design\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical Welding with Precision\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003eRemote Control with On \/ Off \/ Auto settings \u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDyno Developed In House\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEliminates drone found on the standard exhaust system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n  \n\u003cp\u003e\u003cstrong\u003eOPF Delete\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eStone offers an OPF delete, which can be included free of charge, this allows you to install the Stone Cat-Back exhaust system on OPF equipped cars without throwing an error code, thus coding out the OPF error code on the ECU is not required.\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the B48 Exhaust System found on the F55 F56 Cooper S.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\" data-mce-style=\"text-align: start;\" data-mce-fragment=\"1\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707_2048x2048.jpg?v=1572705528\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707_2048x2048.jpg?v=1572705528\" data-mce-style=\"float: none;\" data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003cbr\u003e \u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eValvetronic System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stone Valvetronic System was independently researched and developed in house. The system forgoes the conventional design of complicated wiring and the rubber inside the valve which is prone to aging, to ensure longevity.\u003c\/p\u003e\n\u003cp\u003eWith the Valvetronic remote control providing three modes to choose from: ON \/ OFF \/ AUTO, this allows for instant switching between modes in accordance to driving conditions faced. So, let the STONE Valvetronic System adapt to your vehicle needs.\u003c\/p\u003e\n\u003cp\u003eThe Valvetronic remote control has 3 modes, ON \/ OFF \/ AUTO, which allows you to open and close the valve at a click of a button. The Auto mode allows customization of the opening and closing of the valve at a predefined RPM.\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/S__53968900_2048x2048.jpg?v=1591014788\" alt=\"- \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\" data-mce-style=\"text-align: start;\" data-mce-fragment=\"1\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending_2048x2048.jpg?v=1572739395\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending_2048x2048.jpg?v=1572739395\" data-mce-style=\"float: none;\" data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800 to 1100 which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg height=\"1024x1024\" width=\"1024x1024\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art. \u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_2048x2048.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\"\u003e\u003cbr\u003e \u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStone Valvetronic System Installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" height=\"672\" width=\"1195\" data-mce-src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eCompatibility \u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003e B48 \u0026amp; B48E Engine\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMINI \u003cspan\u003eJCW F60\u003c\/span\u003e (2019+)\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch4\u003e\u003cb\u003ePart Number\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eAP548S \u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003ePhotos \u0026amp; Videos \u003c\/h4\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustMINIB48B48EF60CountrymanJCWCat-BackValvetronicExhaustSystem-1_2048x2048.webp?v=1681802437\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustMINIB48B48EF60CountrymanJCWCat-BackValvetronicExhaustSystem-2_2048x2048.webp?v=1681802476\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustMINIB48B48EF60CountrymanJCWCat-BackValvetronicExhaustSystem-2_2048x2048.webp?v=1681802476\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustMINIB48B48EF60CountrymanJCWCat-BackValvetronicExhaustSystem-3_2048x2048.webp?v=1681802491\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustMINIB48B48EF60CountrymanJCWCat-BackValvetronicExhaustSystem-3_2048x2048.webp?v=1681802491\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustMINIB48B48EF60CountrymanJCWCat-BackValvetronicExhaustSystem-4_2048x2048.webp?v=1681802460\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4 class=\"style-scope ytd-video-primary-info-renderer\"\u003e\u003cstrong\u003eMore Information \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64544676479325,"sku":"AP548S","price":3427.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/StoneExhaustMINIB48B48EF60CountrymanJCWCat-BackValvetronicExhaustSystem-9_08ec0476-0f95-46f5-b4d5-279acc962d39.webp?v=1777348277"},{"product_id":"stone-exhaust-bmw-n20-f25-f26-eddy-catalytic-downpipe-inc-x3-20i-xdrive-x4-20i-xdrive-x3-28i-xdrive-x4-28i-xdrive","title":"Stone Exhaust BMW N20 E84 E89 F25 F26 Eddy Catalytic Downpipe (Inc. X3 20i xDrive, X4 20i xDrive, X3 28i xDrive \u0026 X4 28i xDrive)","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eMeet the latest technology that adheres to the world's increasingly stringent environmental regulations at the same time enhances performance to another level. In comparison to commercially available linear frustums, the \"eddy catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of horsepower tests and straight downpipes, our patented eddy catalytic technology can effectively increase horsepower and torque.\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo more delayed in power delivery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo error code nor check engine light\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation to obtain the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpecial 3D design to achieve 100% OEM fitment, no modification required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Premium Grade Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability at the t\u003c\/span\u003e\u003cspan\u003eurbo Flange.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUK MOT friendly and Euro 6 Compliant\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the N20 Exhaust System found on the BMW F25 F26 X3 20i xDrive, X4 20i xDrive, X3 28i xDrive \u0026amp; X4 28i xDrive. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" data-mce-style=\"float: none;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry's standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" data-mce-style=\"float: none;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800? to 1100?) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\" width=\"1024x1024\" height=\"1024x1024\" data-mce-style=\"float: none;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" data-mce-style=\"float: none;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003e N20 Engine\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eBMW X Series\u003c\/p\u003e\n\u003cli\u003eE84 X1-X4 20i\/28i (2008 - 2015)\u003c\/li\u003e\n\u003cli\u003eF25 X3 20i (2013-2017)\/ X3 20i xDrive  (2011-2017)\u003c\/li\u003e\n\u003cli\u003eF25 X3 28i (2013-2017)\/ X3 28i xDrive  (2009-2017)\u003c\/li\u003e\n\u003cli\u003eF26 X4 20i xDrive (2013-2018)\u003c\/li\u003e\n\u003cli\u003eF26 X4 28i xDrive (2013-2018)\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBMW Z\u003cspan\u003e \u003c\/span\u003eSeries\u003c\/p\u003e\n\u003cli\u003eE89 Z4 20i\/30i (2008 -2016)\u003c\/li\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eA206XE\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eMore Information\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64544737329501,"sku":"A206XE","price":1751.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/Logo1.5_60e7e380-e153-4f17-9fbc-4f497010040c.jpg?v=1777348928"},{"product_id":"stone-exhaust-volvo-y352-y283-v60-s60-t5-t6-2-0t-catless-downpipe","title":"Stone Exhaust Volvo Y352\/Y283 V60\/S60 T5\/T6 2.0T Catless Downpipe","description":"\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust employs state of the art 3D flow velocity measurement software and the technique of a one-piece mandrel bent pipe design. Using mechanical welding arms to accurately weld stops ash generating in the pipe wall which can cause vapor lock and poor exhaust efficiency. Stone Exhaust's innovative manufacturing process of the catless downpipe prevents multiple welding positions and vapor lock whilst maximizing efficiency of the exhaust turbine.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCatless downpipe for Volvo Y352\/Y283 V60\/S60 T5\/T6 with 2.0T engine.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eUnique Flex design to prevent breakage caused by extreme heat \u003c\/li\u003e\n\u003cli\u003eCrisscross welding to strengthen turbo flange\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003eMechanical Welding with Precision\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e100% OEM Fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/article\u003e\n\u003cp class=\"unreset\"\u003e  \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the 2.0T Exhaust Systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry's standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003cimg data-mce-fragment=\"1\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending_480x480.png?v=1619575566\" alt=\"7 Axis CNC Bending Machine | Stone Exhaust USA\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending_480x480.png?v=1619575566\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800? to 1100?) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility - 2.0T Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eY352\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e V60 T5 (2014+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003eY283\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eV60 T6 (2014+)\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eS60 T6 (201\u003c\/span\u003e\u003cspan\u003e6\u003c\/span\u003e\u003cspan\u003e+)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e \u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003eO202P\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2\u003cspan\u003e \u003c\/span\u003eYear Warranty\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimension \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e78cm x 25cm x 43cm \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWill be updated soon\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmission Notice \u003c\/strong\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003cspan\u003eVarious U.S. states and the U.S. federal government have individual laws regulating the use of aftermarket exhaust parts and system, especially when the stock system is modified, remove, or if you are replacing original catalysts. Please consult the appropriate law department in your area before installing any aftermarket part or system on your vehicle to ensure compliance with all applicable laws. The purchasers are entirely responsible for informing themselves of the applicable laws where the products are to be used and to comply with those laws.\u003c\/span\u003e\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64544744833373,"sku":"O202P","price":1162.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/StoneExhaustVolvoY352_Y283V60_S60T5_T62.0TCatlessDownpipe_0679ad8f-e501-4ef5-95d0-027bdf05447d.png?v=1777349026"},{"product_id":"stone-exhaust-volvo-v432-431-v60-s60-t5r-2-0t-cat-back-valvetronic-exhaust-system","title":"Stone Exhaust Volvo V432\/431 V60\/S60 T5R 2.0T Cat-Back Valvetronic Exhaust System","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eWe are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System, to enhance the performance and sound of your Volvo V432\/431 V60\/S60 T5R with the 2.0T engine. \u003cbr\u003e\u003cbr\u003eStone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With our in-house dyno, your Ford exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.\u003cbr\u003e\u003cbr\u003eThe Cat-Back Valvetronic System comes with a separate remote controller that gives you full control of the exhaust, allowing you to open and close the valves with a click of a button. You can also set it in auto mode for the valves to open at a certain rpm automatically. The Stone Valvetronic system is a plug and play system, and connects to your OBDII port, which can be installed within a few minutes.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eValvetronic System\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMechanical Welding with Precision\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRemote Control with On \/ Off \/ Auto settings \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDyno Developed In House\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEliminates drone found on the standard exhaust system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/article\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the 2.0T Exhaust Systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility - 2.0T Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eVolvo V431\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eS60 T5R (201\u003c\/span\u003e\u003cspan\u003e8\u003c\/span\u003e\u003cspan\u003e+)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eVolvo V432\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eV60 T5R (2018+)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eStone Exhaust\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003ePart number \u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eOP504AS\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4 class=\"unreset\"\u003e\u003cspan\u003ePhotos \u0026amp; Videos\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e \u003ciframe title=\"Volvo V432 V60 T5R 2.0T with Stone Exhaust Valvetronic Cat-back System sound\" src=\"https:\/\/www.youtube.com\/embed\/ZBa_yIWtGZ0\" height=\"298\" width=\"530\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg alt=\"Stone Exhaust Volvo V432\/431 V60\/S60 T5R 2.0T Cat-Back Valvetronic Exhaust System - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustVolvoV432431V60S60T5R2.0TCat-BackValvetronicExhaustSystem-5_2048x2048.webp?v=1675083602\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustVolvoV432431V60S60T5R2.0TCat-BackValvetronicExhaustSystem-6_2048x2048.webp?v=1675083612\" alt=\"Stone Exhaust Volvo V432\/431 V60\/S60 T5R 2.0T Cat-Back Valvetronic Exhaust System - \" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustVolvoV432431V60S60T5R2.0TCat-BackValvetronicExhaustSystem-6_2048x2048.webp?v=1675083612\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustVolvoV432431V60S60T5R2.0TCat-BackValvetronicExhaustSystem-7_2048x2048.webp?v=1675083621\" alt=\"Stone Exhaust Volvo V432\/431 V60\/S60 T5R 2.0T Cat-Back Valvetronic Exhaust System - \" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustVolvoV432431V60S60T5R2.0TCat-BackValvetronicExhaustSystem-7_2048x2048.webp?v=1675083621\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustVolvoV432431V60S60T5R2.0TCat-BackValvetronicExhaustSystem-8_2048x2048.webp?v=1675083629\" alt=\"Stone Exhaust Volvo V432\/431 V60\/S60 T5R 2.0T Cat-Back Valvetronic Exhaust System - \" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustVolvoV432431V60S60T5R2.0TCat-BackValvetronicExhaustSystem-8_2048x2048.webp?v=1675083629\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustVolvoV432431V60S60T5R2.0TCat-BackValvetronicExhaustSystem-9_2048x2048.webp?v=1675083636\" alt=\"Stone Exhaust Volvo V432\/431 V60\/S60 T5R 2.0T Cat-Back Valvetronic Exhaust System - \" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/StoneExhaustVolvoV432431V60S60T5R2.0TCat-BackValvetronicExhaustSystem-9_2048x2048.webp?v=1675083636\"\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64544957497693,"sku":"OP504AS","price":3230.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1q4RZx0zCxUgMkluUMD9CUji11CzzyWQg_10bfb417-50d2-41b8-b6aa-eae0110c0a9f.jpg?v=1777364076"},{"product_id":"stone-exhaust-bmw-n55-f20-f22-eddy-catalytic-downpipe-m135i-m235i","title":"Stone Exhaust BMW N55 F20 F22 F25 F30 F32 Eddy Catalytic Downpipe (X3\/X4 xDrive 35i\/40i, M135i, M235i, 335i \u0026 435i)","description":"\u003ch3 style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cspan style=\"color: #000000;\" data-mce-style=\"color: #000000;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3 style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003c\/h3\u003e\n\u003ch2 style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eStone Exhaust Eddy Catalytic Downpipe \u003c\/strong\u003e \u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2 style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003e(X3\/X4 xDrive 35i\/40i, M135i, M235i, 335i \u0026amp; 435i) \u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eMeet the latest patented technology that adheres to the world's increasingly stringent environmental regulations, at the same time enhances performance to another level. In comparison to commercially available linear frustums, the \"eddy catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of conventional straight downpipes, the patented eddy catalytic technology can effectively increase horsepower and torque. In the lower rpm you will be immerse with vast amount of torque until you reach higher rpm where the vortex effect really comes to life and opens up the Catalytic, resulting in a performance similar to a 100 CELL Catalytic. However in the lower rpm, the catalytic will produce efficient and clean emission similar to a 400CEL Catalytic and produce no Check Engine Lights, completely error free.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo more delayed in power delivery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation to obtain the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpecial 3D design to achieve 100% OEM fitment, no modification required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Premium Grade Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability. at Turbo Flange.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUK MOT friendly and Euro 6 Compliant\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e76.2mm in Diameter\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyse factors such as pipe diameter, route and degrees of the bending angles of the N55 downpipe.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilises the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" style=\"float: none;\" data-mce-style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilising a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defence industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the world leading industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilising this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally moulded exhaust pipe with an accuracy error of less 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending - \" style=\"float: none;\" data-mce-style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilising both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" height=\"1024x1024\" width=\"1024x1024\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" data-mce-style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by industry leading mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" height=\"2048x2048\" width=\"2048x2048\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_2048x2048.jpg?v=1572828178\" data-mce-style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003cstrong\u003eArt of Welding\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" height=\"1024x1024\" width=\"1024x1024\" alt=\"Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/welding_1024x1024.jpg?v=1579900236\" data-mce-style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eYou may also be interested in the Stone Exhaust M135i \u0026amp; M235i Cat-Back Valvetronic System to compliment the Eddy Catalytic Downpipe.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Gains\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePower \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e+ 24.4PS at 5734rpm\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTorque\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e+ 16.6 ft. lb.s at 2921rpm\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eN55 Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBMW 1 Series \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eF20 M135i \/M135i xDrive (2011-2015)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eF20 LCI M135i \/M135i xDrive (2015-2018)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eF21 M135i (2011+) \/M135i xDrive (2012-2015)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eF21 LCI M135i \/M135i xDrive (2014-2016)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBMW 2 Series \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eF22 M235i (2012-2016)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eF22 M235i xDrive (2013-2016)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eF23 M235i\/M235i xDrive (2014-2016)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBMW 3 Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF30\/F31 330e\/335i\/ 335i xDrive (2011-2015)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBMW 4 Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF32 F33 F36 435i\/435i xDrive (2012-2016)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBMW X Series\u003c\/p\u003e\n\u003cli data-mce-fragment=\"1\"\u003eF25 X3 35i xDrive (2009-2017)\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eF26 X4 35i xDrive (2013-2018)\u003cspan data-mce-fragment=\"1\"\u003e\/\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eM40\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003ei xDrive (2014-2018)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility Check\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eTo ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eA201E (PWG)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA202E (EWG)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust 2 Year Warranty\u003c\/span\u003e\u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Pneumatic (Before July 2013)","offer_id":64545019494749,"sku":"A201E","price":1734.41,"currency_code":"GBP","in_stock":true},{"title":"Electronic (After July 2013)","offer_id":64545019527517,"sku":"A202E","price":1751.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1XM4N6A4hejYJAMnxSV2yHfRdia4h4B16_99f54eab-e4d1-4e18-b0dd-039f3a979fae.jpg?v=1777364602"},{"product_id":"stone-exhaust-bmw-n55-f06-f12-f13-640i-cat-back-valvetronic-exhaust","title":"Stone Exhaust BMW N55 F06 F12 F13 640i Cat-Back Valvetronic Exhaust","description":"\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eWe are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System with dual valves, to enhance the performance and sound of your BMW F06 640i Gran Coupe (2011) \u0026amp; \u003cspan\u003eF\u003c\/span\u003e\u003cspan\u003e12\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e640i Convertible (2009) \u0026amp; F\u003cspan\u003e13\u003c\/span\u003e 640i Coupe (2010)\u003c\/span\u003e with the N55 engine, manufactured after 2009, 2010 and 2011. Stone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With their in-house dyno, your BMW exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eThe Cat-Back Valvetronic System comes with a separate remote controller that gives you full control of the exhaust, allowing you to open and close the valves with a click of a button. You can also set it in auto mode for the valves to open at a certain rpm automatically. The Stone Valvetronic system is a plug and play system, and connects to your OBDII port, which can be installed within a few minutes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eStone Valvetronic System Installation \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" height=\"672\" width=\"1195\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSTONE Valvetronic BMW N55 F06 F12 F13 640i  Exhaust System.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eValvetronic System\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical Welding with Precision\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDyno Developed In House\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEliminates drone found on the standard exhaust system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/article\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eBMW N55 F13 640i with Stone Exhaust Catless DP + Valvetronic Cat-back Exhaust System Sound\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/lWFVC8cmG0Q\" height=\"672\" width=\"1195\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOPF Delete\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eStone offers an OPF delete, which can be included free of charge, this allows you to install the Stone Cat-Back exhaust system on OPF equipped cars without throwing an error code, thus coding out the OPF error code on the ECU is not required.\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the Catless Downpipe found on the BMW F06 F12 F13 640i. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValvetronic System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stone Valvetronic System was independently researched and developed in house. The system forgoes the conventional design of complicated wiring and the rubber inside the valve which is prone to ageing, to ensure longevity.\u003c\/p\u003e\n\u003cp\u003eWith the Valvetronic remote control providing three modes to choose from: ON \/ OFF \/ AUTO, this allows for instant switching between modes in accordance to driving conditions faced. So, let the STONE Valvetronic System adapt to your vehicle’s needs.\u003c\/p\u003e\n\u003cp\u003eThe Valvetronic remote control has 3 modes, ON \/ OFF \/ AUTO, which allows you to open and close the valve at a click of a button. The Auto mode allows customization of the opening and closing of the valve at a predefined RPM.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled_e55d1881-dc86-4cb6-a91c-734c502c538f_600x600.png?v=1587977200\" alt=\"Stone Exhaust BMW N55 F87 M2 Cat-Back Valvetronic Exhaust - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility - N55 Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBMW 6 Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF06 640i (2011+)\u003c\/li\u003e\n\u003cli\u003eF06 640i xDrive (2011+)\u003c\/li\u003e\n\u003cli\u003eF06 LCI 640i (2014+)\u003c\/li\u003e\n\u003cli\u003eF06 LCI 640i \u003cspan\u003exDrive\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(2014+)\u003c\/li\u003e\n\u003cli\u003eF12 640i (2009+)\u003c\/li\u003e\n\u003cli\u003eF12 640i xDrive (2012+)\u003c\/li\u003e\n\u003cli\u003eF12 LCI 640i \/ 640i xDrive (2014+)\u003c\/li\u003e\n\u003cli\u003eF13 640i (2010+)\u003c\/li\u003e\n\u003cli\u003eF13 640i xDrive (2012+)\u003c\/li\u003e\n\u003cli\u003eF13 LCI 640i \/ 640i xDrive (2014+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/article\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePart Number\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAP511AS (F06)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAP511BS (F12\/F13)\u003c\/span\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"F06 \/ Flat Cut Gloss Carbon Fiber (102mm)","offer_id":64545045283165,"sku":"AP511AS-1020CG","price":4754.78,"currency_code":"GBP","in_stock":true},{"title":"F12\/F13 \/ Flat Cut Gloss Carbon Fiber (102mm)","offer_id":64545045315933,"sku":"AP511BS-1020CG","price":4802.81,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1N__K_7no-ROX8MV2HTlyopAw63r2X31p_5a2a2b69-d639-4dcb-a070-bb58788931f4.jpg?v=1777364758"},{"product_id":"stone-exhaust-bmw-b58d-g20-g21-eddy-catalytic-downpipe-gpf-m340i-m340i-xdrive","title":"Stone Exhaust BMW Toyota B58D Eddy Catalytic Downpipe GPF (Inc. A90 Supra, G29 Z4 M40i, G20 M340i \u0026 G20 M340i xDrive)","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003cspan\u003eMeet the latest patented technology that adheres to the world's increasingly stringent environmental regulations, at the same time enhances performance to another level on your BMW G20, G21, G29 G29, Z4 M40i, M340i \u0026amp; M340i xDrive and Toyota A90 Supra with B58D engine. In comparison to commercially available linear frustums, the \"eddy catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of conventional straight downpipes, the patented eddy catalytic technology can effectively increase horsepower and torque. In the lower rpm you will be immerse with vast amount of torque until you reach higher rpm where the vortex effect really comes to life and opens up the Catalytic, resulting in a performance similar to a 100 CELL Catalytic. However in the lower rpm, the catalytic will produce efficient and clean emission similar to a 400CEL Catalytic and produce no Check Engine Lights, completely error free.\u003c\/span\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement. No more delayed or error code problem.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation of the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA special 3D design able to achieve a perfectly matching model with the original pipe. the same installation applies, no need to modify.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUK MOT friendly and Euro 6 Compliant\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e  \u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the B58D Exhaust System found on the A90 Supra, G29 Z4 M40i, G20 M340i \u0026amp; G20 M340i xDrive.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" style=\"float: none;\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending - \" style=\"float: none;\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg height=\"1024x1024\" width=\"1024x1024\" style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Compatibility Accordion - Sam Mugabi--\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eB58D Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBMW\u003c\/p\u003e\n\u003cstyle\u003e\u003c!--\n.compatibility-tab {\n position: relative;\n width: 100%;\n overflow: hidden;\n padding: 5px 0;\n border-top: 1px solid #cdcdcd;\n \u0026:nth-last-child(1) {\n border-bottom: 1px solid #cdcdcd;\n }\n }\n .compatibility-tab label {\n position: relative;\n display: block;\n padding: 0 25px 0 0;\n margin-bottom: 3px;\n font-size: 15px;\n line-height: normal;\n cursor: pointer;\n }\n .compatibility-tab input {\n position: absolute;\n opacity: 0;\n z-index: -1;\n }\n .compatibility-tab-content {\n max-height: 0;\n overflow: hidden;\n transition: max-height .35s;\n }\n \/* :checked *\/\n .compatibility-tab input:checked ~ .compatibility-tab-content {\n max-height: none;\n }\n \/* Icon *\/\n .compatibility-tab label::after {\n position: absolute;\n color: #B79F37;\n font-size: 20px;\n right: 0;\n top: 0;\n display: block;\n -webkit-transition: all .35s;\n -o-transition: all .35s;\n transition: all .35s;\n }\n .compatibility-tab input[type=checkbox] + label::after {\n content: \"+\";\n }\n .compatibility-tab input[type=radio] + label::after {\n content: \"\\25BC\";\n }\n .compatibility-tab input[type=checkbox]:checked + label::after {\n transform: rotate(315deg);\n }\n .compatibility-tab input[type=radio]:checked + label::after {\n transform: rotateX(180deg);\n }\n--\u003e\u003c\/style\u003e\n\u003cdiv class=\"compatibility-accordion-wrapper\"\u003e\n\u003cdiv class=\"compatibility-tab\"\u003e\n\u003cinput name=\"tabs\" type=\"checkbox\" id=\"compatibility-tab-1\"\u003e \u003clabel for=\"compatibility-tab-1\"\u003e\u003cb\u003e2 Series\u003c\/b\u003e\u003cbr\u003e\u003c\/label\u003e\n\u003cdiv class=\"compatibility-tab-content\"\u003e\n\u003cp\u003e2 Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eG42 M240i xDrive (2022+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compatibility-tab\"\u003e\n\u003cinput name=\"tabs\" type=\"checkbox\" id=\"compatibility-tab-2\"\u003e \u003clabel for=\"compatibility-tab-2\"\u003e\u003cb\u003e3 Series\u003c\/b\u003e\u003c\/label\u003e\n\u003cdiv class=\"compatibility-tab-content\"\u003e\n\u003cp\u003e3 Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eG20 340i\/340i xDrive (2018+)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eG21 340i xDrive (2018+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compatibility-tab\"\u003e\n\u003cinput name=\"tabs\" type=\"checkbox\" id=\"compatibility-tab-4\"\u003e \u003clabel for=\"compatibility-tab-4\"\u003e\u003cb\u003eZ Series\u003c\/b\u003e\u003c\/label\u003e\n\u003cdiv class=\"compatibility-tab-content\"\u003e\n\u003cp\u003eBMW Z Series\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eG29 Z M40i (2019+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compatibility-tab\"\u003e\n\u003cbr\u003e \u003clabel for=\"compatibility-tab-3\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/label\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eToyota \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupra\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA90 Supra (2020-Present)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003eA223E\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePhotos \u0026amp; Videos\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW G29 B58D Z4 M40i \/ Stone Eddy Catted Downpipe\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"1280\" height=\"720\" src=\"https:\/\/www.youtube.com\/embed\/UX29BUit9Ww\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545045938525,"sku":"A223E","price":1987.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/Image-Coming-Soon_ca641432-45d7-4f1e-b07d-b7ff3ef2815f.png?v=1777364759"},{"product_id":"stone-exhaust-bmw-n55-f87-m2-catless-downpipe","title":"Stone Exhaust BMW N55 F87 M2 Catless Downpipe","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust employs state of the art 3D flow velocity measurement software and the technique of a one-piece mandrel bent pipe design. Using mechanical welding arms to accurately weld stops ash generating in the pipe wall which can cause vapor lock and poor exhaust efficiency. Stone Exhaust’s innovative manufacturing process of the catless downpipe prevents multiple welding positions and vapor lock whilst maximizing efficiency of the exhaust turbine.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCatless downpipe for BMW N55 F87 M2\u003c\/li\u003e\n\u003cli\u003eFlex design to prevent breakage caused by extreme heat \u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003c\/li\u003e\n\u003cli\u003eCrisscross welding to strengthen turbo flange\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003eMachine Welding\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e100% OEM Fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the N55 Exhaust System found on the BMW  F87 M2. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending - \" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cp\u003e\u003cimg height=\"1024x1024\" width=\"1024x1024\" style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Gains\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e+ 16.9Ps at 5892rpm\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTorque\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e+21.6nm of torque at 3697rpm\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDyno Result\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/productEDDY_CATBACK-1_600x600.png?v=1589083480\" alt=\"Stone Exhaust BMW N55 F87 M2 Catless Downpipe - \"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cb\u003eCompatibility \u003c\/b\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eN55 Engine\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eBMW M Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF87 M2 (2014+)\u003c\/li\u003e\n\u003cli\u003eF87 LCI M2 (2016+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eA215P\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eMore Information\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warrant\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePhotos \u0026amp; Videos\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eVideo\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW F87 M2 STONE Exhaust Systems Sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"668\" height=\"376\" src=\"https:\/\/www.youtube.com\/embed\/OOKv8UvqOYc\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545046102365,"sku":"A215P","price":1044.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1uZsnoXAaH6SUu7QMKEI2pWN4CChtuXVs_67d5ddd1-516c-450f-963a-aa32b9ab57c6.jpg?v=1777364762"},{"product_id":"stone-exhaust-bmw-b48-f30-f32-cat-back-valvetronic-exhaust-inc-330i-430i","title":"Stone Exhaust BMW B48 F30 F32 OEM Integrated Valved Catback Exhaust System (Inc. 330i \u0026 430i)","description":"\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eWe are proud to introduce you to the state of the art Stone Exhaust OEM Integrated Valve Cat-back Exhaust System, to enhance the performance and sound of your BMW\u003cspan\u003e F30 LCI Sedan 330i, F31 LCI Touring 330i, F32 Coupe 430i, F33 Convertible 430i and F36 Gran Coupe 430i with the B48 engine\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With our in-house dyno, your BMW exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eThe OEM Integred Valve option allows your exhuast system to operate as standard, where the onboard computer (ECU) will control the opening and closing of the valves automatically.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eYou may wish to add the \u003c\/span\u003e\u003ca href=\"\/products\/stone-cat-back-valvetronic-system-package\" target=\"_blank\"\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003cstrong data-mce-fragment=\"1\" style=\"color: #2b00ff;\"\u003eStone Valvetronic System\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e (Singe Valve) which enables you to control the valves remotely via the stone remote controller.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSTONE Valvetronic BMW B48 F30 F31 F32 F33 F36 330i 430i Exhaust System.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM Integration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eAvailable to add-on Stone Valvetronic System\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical Welding with Precision\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDyno Developed In House\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEliminates drone found on the standard exhaust system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW F3x 330i\/430i B48 Engine STONE Exhaust Systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"854\" height=\"480\" src=\"https:\/\/www.youtube.com\/embed\/VSgvyGxd3ic\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003e Fitted Photo(s)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW B48 F30 F32 Cat-Back Valvetronic Exhaust (Inc. 330i \u0026amp; 430i) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled_1a3fe228-2636-4481-9d47-dbd3b714441e_600x600.png?v=1588585900\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW B48 F30 F32 Cat-Back Valvetronic Exhaust (Inc. 330i \u0026amp; 430i) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled1_dc9c3db9-0f23-4a77-b4af-fd241ddc6faa_600x600.png?v=1588585909\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW B48 F30 F32 Cat-Back Valvetronic Exhaust (Inc. 330i \u0026amp; 430i) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled2_698b2ca4-e68a-44fb-a4a8-38f4174e25ab_600x600.png?v=1588585923\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW B48 F30 F32 Cat-Back Valvetronic Exhaust (Inc. 330i \u0026amp; 430i) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled3_2f13dd3e-6e38-4063-b782-6287fc892b96_600x600.png?v=1588585933\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW B48 F30 F32 Cat-Back Valvetronic Exhaust (Inc. 330i \u0026amp; 430i) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled4_8d9b1680-43aa-4acf-b753-89eb1ecdc1ba_600x600.png?v=1588585948\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW B48 F30 F32 Cat-Back Valvetronic Exhaust (Inc. 330i \u0026amp; 430i) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled5_5c36bc91-f6ad-476d-9aab-e22f76a1426d_600x600.png?v=1588585959\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW B48 F30 F32 Cat-Back Valvetronic Exhaust (Inc. 330i \u0026amp; 430i) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled6_6ad83fd9-f80e-4d58-ae53-5cc2e155a39f_600x600.png?v=1588585974\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW B48 F30 F32 Cat-Back Valvetronic Exhaust (Inc. 330i \u0026amp; 430i) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled7_49d9f718-f2c3-4238-a557-775302db3028_600x600.png?v=1588585983\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the B48 Exhaust Systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility - B48 Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBMW 3 Series \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eF30 LCI\/ F31 LCI  330i\/330i xDrive\/330e (2014-2018)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003eBMW 4\u003c\/span\u003e\u003cspan\u003e Series \u003c\/span\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cul\u003e\n\u003cli\u003eF32 420i\/420i xDrive (2015+)\u003c\/li\u003e\n\u003cli\u003eF32 LCI 420i\/\u003cspan\u003e420i xDrive\u003c\/span\u003e (2016+) \u003c\/li\u003e\n\u003cli\u003eF33 420i\/420i xDrive (2015+)\u003c\/li\u003e\n\u003cli\u003eF33 LCI 420i\/\u003cspan\u003e420i xDrive\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(2016+) \u003c\/li\u003e\n\u003cli\u003eF36 420i\/420i xDrive (2015+)\u003c\/li\u003e\n\u003cli\u003eF36 LCI 420i\/\u003cspan\u003e420i xDrive\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(2016+) \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eAP512B48 (Dual Exit with Twin Tailpipes)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eAP512QB48 (Dual Exit with Quad Tailpipes)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"OEM Integrated Valve(s) \/ Dual Exit with Twin Tailpipes \/ Require Original Bumper \/ Flat Cut Gloss Carbon Fibre (82mm)","offer_id":64545046135133,"sku":"AP512B48-8200CG","price":3004.04,"currency_code":"GBP","in_stock":true},{"title":"OEM Integrated Valve(s) \/ Dual Exit with Quad Tailpipes \/ Require M Sport Bumper) \/ Flat Cut Matte Carbon Fibre (82mm)","offer_id":64545046167901,"sku":"AP512QB48","price":3623.86,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/10pJ8plOWiKfJHjNjBYKlb5xyd_gGlLbJ_5a493fa5-6532-464d-b8d4-33f05f2da9f5.jpg?v=1777364766"},{"product_id":"stone-exhaust-bmw-n20-f22-f23-220i-cat-back-valvetronic-exhaust","title":"Stone Exhaust BMW N20 F22 F23 220i Cat-Back Valvetronic Exhaust","description":"\u003carticle data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eWe are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System, to enhance the performance and sound of your BMW F22 Coupe 220i (2012) \u0026amp; F23 Convertible 220i (2014) with the N20 engine, manufactured after 2012 \u0026amp; 2014. Stone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With their in-house dyno, your BMW exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eThe Cat-Back Valvetronic System comes with a separate remote controller that gives you full control of the exhaust, allowing you to open and close the valves with a click of a button. You can also set it in auto mode for the valves to open at a certain rpm automatically. The Stone Valvetronic system is a plug and play system, and connects to your OBDII port, which can be installed within a few minutes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eStone Valvetronic System Installation \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003ciframe width=\"1195\" height=\"672\" src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSTONE Valvetronic BMW N20 F22 F23 220i Exhaust System.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eValvetronic System\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical Welding with Precision\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003eRemote Control with On \/ Off \/ Auto settings\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDyno Developed In House\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEliminates drone found on the standard exhaust system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\"\u003e\n\u003cp\u003e\u003cstrong\u003eBMW N20 F22 220i with Stone Exhaust Eddy Catalytic Downpipie + Valvetronic Satback System Sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"1195\" height=\"672\" src=\"https:\/\/www.youtube.com\/embed\/MUAKORYZlf0\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitted Photo(s)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW N20 F22 F23 220i Cat-Back Valvetronic Exhaust - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled_5670024b-e1bc-4f4e-bd93-66148764e562_600x600.png?v=1588846234\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW N20 F22 F23 220i Cat-Back Valvetronic Exhaust - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled1_e5f50781-9e2c-40b7-bf8d-d723f78abb2d_600x600.png?v=1588846243\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW N20 F22 F23 220i Cat-Back Valvetronic Exhaust - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled2_96da36f7-bea2-4c03-8905-be6bc5b36a69_600x600.png?v=1588846253\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW N20 F22 F23 220i Cat-Back Valvetronic Exhaust - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled3_0bf51eb0-cfe8-4bfb-9724-420c4a711a6f_600x600.png?v=1588846262\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW N20 F22 F23 220i Cat-Back Valvetronic Exhaust - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled4_c861dbf6-b2b0-41ae-a087-bd0867e7de8f_600x600.png?v=1588846272\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the Exhaust System found on the BMW.\u003c\/p\u003e\n\u003cp\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValvetronic System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stone Valvetronic System was independently researched and developed in house. The system forgoes the conventional design of complicated wiring and the rubber inside the valve which is prone to aging, to ensure longevity.\u003c\/p\u003e\n\u003cp\u003eWith the Valvetronic remote control providing three modes to choose from: ON \/ OFF \/ AUTO, this allows for instant switching between modes in accordance to driving conditions faced. So, let the STONE Valvetronic System adapt to your vehicle’s needs.\u003c\/p\u003e\n\u003cp\u003eThe Valvetronic remote control has 3 modes, ON \/ OFF \/ AUTO, which allows you to open and close the valve at a click of a button. The Auto mode allows customization of the opening and closing of the valve at a predefined RPM.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust BMW N20 F22 F23 220i Cat-Back Valvetronic Exhaust - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled_e55d1881-dc86-4cb6-a91c-734c502c538f_600x600.png?v=1587977200\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180°. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" width=\"1024x1024\" height=\"1024x1024\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/div\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility - N20 Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\nBMW 2 Series\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\"\u003e\n\u003cul\u003e\n\u003cli\u003eF22 220i (2012+)\u003c\/li\u003e\n\u003cli\u003eF23 \u003cspan\u003e220i (2014+)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eAP508NSN20\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Flat Cut Gloss Carbon Fiber (82mm)","offer_id":64545046200669,"sku":"AP508NSN20-8200CG","price":3427.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/12JOVlij6L5TYye6hTplzU7UiXtGOEQKB_07d291dd-e26c-4fe6-9314-dbd9c85277d7.jpg?v=1777364769"},{"product_id":"stone-exhaust-bmw-n20-f10-f11-520i-catless-downpipe","title":"Stone Exhaust BMW N20 F10 F11 Catless Downpipe (520i \u0026 528i)","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003eIn order to get even better efficiency for the section of exhaust turbine, as well as to prevent multiple welding positions in the downpipe section, which generates ash in the pipe while welding, causing bad exhaust efficiency, and then generates vaper lock and thus inability to exhaust, Stone Exhaust uses a variety of smart ideas in downpipe design. The company employs flow velocity measurement software in 3D and the technique of one-piece bend pipes, along with mechanical arms which accurately welds without generating ash in the pipe wall in order to further exhaust efficiency of Catless Downpipe. It is a perfect and effective product which has surpassed all similar products in the market.\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCatless downpipe for 520i \u0026amp; 528i with N20 engine.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eUnique Flex design to prevent breakage caused by extreme heat \u003c\/li\u003e\n\u003cli\u003eCrisscross welding to strengthen turbo flange\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003eMechanical Welding with Precision\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e100% OEM Fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the BMW N20 520i \u0026amp; 528i.\u003cspan style=\"color: #212b36; font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', Roboto, 'Segoe UI', 'Helvetica Neue', sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eN20 Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBMW 5\u003c\/span\u003e\u003cspan\u003e Series\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF10 \u003cspan\u003e520i\/528i (2010-2013)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eF10 LCI 520i\/528i (2012-2016)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eF11 520i\/528i (2012-2013)\u003c\/li\u003e\n\u003cli\u003eF11 LCI 520i\/528i (2013-2017)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eA206P\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003ePhotos \u0026amp; Videos\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eFitted Photo(s) \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg alt=\"Stone Exhaust BMW N20 F10 F11 Catless Downpipe (Inc. 520i \u0026amp; 528i) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled_116e9260-064a-4cf6-9dd4-ad8b6bbb135a_2048x2048.png?v=1587751935\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg alt=\"Stone Exhaust BMW N20 F10 F11 Catless Downpipe (Inc. 520i \u0026amp; 528i) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled2_2048x2048.png?v=1587752204\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545046233437,"sku":"A206P","price":965.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1nUqriK_JPTnRtw95Q1H2xservBgoBOwr_4c4f411b-531a-4fc7-a698-035326bbeeae.jpg?v=1777364770"},{"product_id":"stone-exhaust-bmw-n13-f20-f30-eddy-catalytic-downpipe-inc-116i-118i-120i-316i","title":"Stone Exhaust BMW N13 F20 F30 Eddy Catalytic Downpipe (Inc. 116i, 118i, 120i \u0026 316i)","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003eMeet the latest technology that adheres to the world's increasingly stringent environmental regulations at the same time enhances performance to another level. In comparison to commercially available linear frustums, the \"eddy catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of horsepower tests and straight downpipes, our patented eddy catalytic technology can effectively increase horsepower and torque.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo more delayed in power delivery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo error code nor check engine light\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation to obtain the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpecial 3D design to achieve 100% OEM fitment, no modification required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Premium Grade Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability at the t\u003c\/span\u003e\u003cspan\u003eurbo Flange.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUK MOT friendly and Euro 6 Compliant\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the N13 Exhaust Systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e N13 Engine \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBMW 1 Series \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF20 LCI 120i (2014+)\u003c\/li\u003e\n\u003cli\u003eF21 LCI 120i (2014+)\u003c\/li\u003e\n\u003cli\u003eF20 116i\/118i (2010+) \u003c\/li\u003e\n\u003cli\u003eF21 \u003cspan\u003e116i (2011+)\/118i (2012+) \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBMW 3\u003c\/span\u003e\u003cspan\u003e Series\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF30 316i (2012+)\u003c\/li\u003e\n\u003cli\u003eF30 LCI 316i (2015+)\u003c\/li\u003e\n\u003cli\u003eF31 316i (2011+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eA213E\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545046266205,"sku":"A213E","price":1751.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1uvLvHyjlnreSyTLT0ZlI7Fw8RzI8e_4N_f649d81a-6233-4174-a599-c99ea8fa8966.jpg?v=1777364771"},{"product_id":"stone-exhaust-volvo-y555-y556-v40-t4-1-6t-eddy-catalytic-downpipe","title":"Stone Exhaust Volvo Y555\/Y556 V40 T4 1.6T Eddy Catalytic Downpipe","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eMeet the latest technology that adheres to the world's increasingly stringent environmental regulations at the same time enhances performance to another level. In comparison to commercially available linear frustums, the \"arc fluid twist-flow catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of horsepower tests and straight downpipes, our patented arc fluid twist-flow catalytic technology can effectively increase horsepower and torque.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement. No more delayed or error code problem.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation of the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA special 3D design able to achieve a perfectly matching model with the original pipe. the same installation applies, no need to modify.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUK MOT friendly and Euro 6 Compliant\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the 1.6T Exhaust System found on the Volvo Y555\/Y556 V40 T4. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm. \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art. \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1.6T Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eY555\/Y556\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e V40 T4 1.6T (2015+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart number \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eO201E\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong data-mce-fragment=\"1\"\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eStone Exhaust\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePhotos \u0026amp; Videos\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eEddy Catalytic DP V.S Stock\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Volvo_Y555Y556_V40_T4_1.6T_Eddy_Catalytic_Downpipie_Stone_Exhaust_USA-1_600x600.jpg?v=1595586003\" alt=\"Stone Exhaust Volvo Y555Y556 V40 T4 1.6T Eddy Catalytic Downpipe - \"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eFitted Photo(s)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/DSC06564-2use_600x600.jpg?v=1595585990\" alt=\"Stone Exhaust Volvo Y555Y556 V40 T4 1.6T Eddy Catalytic Downpipe - \"\u003e\u003c\/div\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545046528349,"sku":"O201E","price":1948.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1lZQgk__PIuM-TtSVpw2oosQWIAlqSatn_a3581e15-da26-4c66-8366-39d172b074e2.jpg?v=1777364771"},{"product_id":"stone-exhaust-lexus-8ar-fts-az10-nx-eddy-catalytic-downpipe-nx-200t-rx-300t","title":"Stone Exhaust Lexus 8AR-FTS AZ10 Eddy Catalytic Downpipe (NX 200T \u0026 NX 300T)","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eMeet the latest technology that adheres to the world's increasingly stringent environmental regulations at the same time enhances performance to another level. In comparison to commercially available linear frustums, the \"arc fluid twist-flow catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of backpressure. When compared to a variety of horsepower tests and straight downpipes, our patented arc fluid twist-flow catalytic technology can effectively increase horsepower and torque.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement. No more delayed or error code problem.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation of the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA special 3D design able to achieve a perfectly matching model with the original pipe. the same installation applies, no need to modify.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUK MOT friendly and Euro 6 Compliant\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the 8AR-FTS Exhaust Systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg height=\"1024x1024\" width=\"1024x1024\" style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eCompatibility\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003e 8AR-FTS Engine\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAZ10\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLexus NX 200T \u0026amp; NX 300T (2015+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eP206E\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545047609693,"sku":"P206E","price":1948.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1tH1P0dPyenVY17JYFlKYJ2z4iBzaJHi_efbf59cb-7e0e-4418-bff2-588760f03e63.jpg?v=1777364778"},{"product_id":"stone-exhaust-lexus-is-200t-eddy-catalytic-downpipe","title":"Stone Exhaust Lexus XE30 8AR-FTS IS 200T\/300 Eddy Catalytic Downpipe","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eMeet the latest technology that adheres to the world's increasingly stringent environmental regulations at the same time enhances performance to another level. In comparison to commercially available linear frustums, the \"arc fluid twist-flow catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of horsepower tests and straight downpipes, our patented arc fluid twist-flow catalytic technology can effectively increase horsepower and torque.\u003cbr\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement. No more delayed or error code problem.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation of the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA special 3D design able to achieve a perfectly matching model with the original pipe. the same installation applies, no need to modify.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUK MOT friendly and Euro 6 Compliant\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the 8AR-FTS Exhaust Systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e8AR-FTS Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLexus XE30 8AR-FTS IS 200T\/300 (2015+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cdiv id=\"info\" class=\"style-scope ytd-video-primary-info-renderer\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eP201E\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545047642461,"sku":"P201E","price":1751.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1wvx5_0dryQKrsI1Wzuj1nog7p3OS4pjd_00b0555d-b734-4cde-af07-279a0b6b036c.jpg?v=1777364779"},{"product_id":"stone-exhaust-ford-mk4-focus-1-5t-eddy-catalytic-downpipe","title":"Stone Exhaust Ford MK4 Focus 1.5T Eddy Catalytic Downpipe","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eMeet the latest technology that adheres to the world's increasingly stringent environmental regulations at the same time enhances performance to another level. In comparison to commercially available linear frustums, the \"arc fluid twist-flow catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of horsepower tests and straight downpipes, our patented arc fluid twist-flow catalytic technology can effectively increase horsepower and torque.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement. No more delayed or error code problem.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation of the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA special 3D design able to achieve a perfectly matching model with the original pipe. the same installation applies, no need to modify.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eUK MOT friendly and Euro 6 Compliant\u003c\/span\u003e  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the 1.5T Exhaust System found on the Ford MK4 Focus 1.5T. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm. \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art. \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eCompatibility\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003e1.5T Engine\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eFord MK4 Focus 1.5T (2018+)\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\n\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\n\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eF231E\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e  \u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003ch4\u003e\u003cstrong\u003ePhotos \u0026amp; Videos\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eEddy Catalytic DP V.S Stock\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Ford_MK4_Focus_1.5T_Eddy_Catalytic_Downpipie_Stone_Exhaust_USA_-1_600x600.png?v=1594381838\" alt=\"Stone Exhaust Ford MK4 Focus 1.5T Eddy Catalytic Downpipe - \"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Ford_MK4_Focus_1.5T_Eddy_Catalytic_Downpipie_Stone_Exhaust_USA_-2_600x600.png?v=1594381756\" alt=\"Stone Exhaust Ford MK4 Focus 1.5T Eddy Catalytic Downpipe - \"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Ford_MK4_Focus_1.5T_Eddy_Catalytic_Downpipie_Stone_Exhaust_USA_-3_600x600.png?v=1594381767\" alt=\"Stone Exhaust Ford MK4 Focus 1.5T Eddy Catalytic Downpipe - \"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eFord MK4 Focus 1.5T With Stone Exhaust Eddy DP + Valvetronic Cat-back Sound\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Non-OPF","offer_id":64545047871837,"sku":"F231E","price":1751.93,"currency_code":"GBP","in_stock":true},{"title":"OPF","offer_id":64545047904605,"sku":"F231NE","price":1734.41,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1j8P2lSRh6MNzTGlkfGoXz7xwUfsYlznH_85078db9-e3b6-4d6a-af99-feba880c4399.jpg?v=1777364781"},{"product_id":"stone-exhaust-ford-mk4-focus-1-5t-catless-downpipes","title":"Stone Exhaust Ford MK4 Focus 1.5T Catless Downpipes","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eMeet the latest technology that adheres to the world's increasingly stringent environmental regulations at the same time enhances performance to another level. In comparison to commercially available linear frustums, the \"arc fluid twist-flow catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of horsepower tests and straight downpipes, our patented arc fluid twist-flow catalytic technology can effectively increase horsepower and torque.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement. No more delayed or error code problem.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation of the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA special 3D design able to achieve a perfectly matching model with the original pipe. the same installation applies, no need to modify.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUK MOT friendly and Euro 6 Compliant\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e  \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the 1.5T Exhaust System found on the Ford MK4 Focus 1.5T. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" style=\"float: none;\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm. \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending - \" style=\"float: none;\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg height=\"1024x1024\" width=\"1024x1024\" style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art. \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\" data-mce-style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eCompatibility\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003e1.5T Engine\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eFord MK4 Focus 1.5T (2018+)\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eF231P (Non-OPF)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eF231NP (OPF)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Non-OPF","offer_id":64545047937373,"sku":"F231P","price":956.3,"currency_code":"GBP","in_stock":true},{"title":"OPF","offer_id":64545047970141,"sku":"F231NP","price":965.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1bR6hbpRn-kfImqpOtxSUv3EwRhu5UIwk_046ee9a3-e59d-4b6a-9ee5-72f14444f63f.jpg?v=1777364782"},{"product_id":"stone-exhaust-porsche-95b-cat-back-valvetronic-exhaust-system-inc-macan-s-3-0t-macam-turbo-3-6t","title":"Stone Exhaust Porsche 95B Cat-Back Valvetronic Exhaust System (Inc. Macan S (G2) 3.0T, Macan S 3.0T \u0026 Macan Turbo 3.6T)","description":"\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003eWe are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System with dual valve(s), to enhance the performance and sound of your Porsche 95B Macan S \u0026amp; Macam Turbo 3.6T with the 3.0T \u0026amp; 3.6T engine, manufactured after 2014. Stone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With their in-house dyno, your BMW exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eThe Cat-Back Valvetronic System comes with a separate remote controller that gives you full control of the exhaust, allowing you to open and close the valves with a click of a button. You can also set it in auto mode for the valves to open at a certain rpm automatically. The Stone Valvetronic system is a plug and play system, and connects to your OBDII port, which can be installed within a few minutes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSTONE Valvetronic Porsche 95B Macan S (G2) 3.0T, Macan S 3.0T \u0026amp; Macan Turbo 3.6T Exhaust System.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eValvetronic System\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical Welding with Precision\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003eRemote Control with On \/ Off \/ Auto settings \u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDyno Developed In House\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEliminates drone found on the standard exhaust system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOPF Delete\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eStone offers an OPF delete, which can be included free of charge, this allows you to install the Stone Cat-Back exhaust system on OPF equipped cars without throwing an error code, thus coding out the OPF error code on the ECU is not required.\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the Exhaust System found on the PORSCHE Macan 95B.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValvetronic System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stone Valvetronic System was independently researched and developed in house. The system forgoes the conventional design of complicated wiring and the rubber inside the valve which is prone to aging, to ensure longevity.\u003c\/p\u003e\n\u003cp\u003eWith the Valvetronic remote control providing three modes to choose from: ON \/ OFF \/ AUTO, this allows for instant switching between modes in accordance to driving conditions faced. So, let the STONE Valvetronic System adapt to your vehicle’s needs.\u003c\/p\u003e\n\u003cp\u003eThe Valvetronic remote control has 3 modes, ON \/ OFF \/ AUTO, which allows you to open and close the valve at a click of a button. The Auto mode allows customization of the opening and closing of the valve at a predefined RPM.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Porsche 95B Macan 2.0T Cat-Back Valvetronic Exhaust System - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/S__53968900_600x600.jpg?v=1591014788\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eCompatibility\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3.0T\/3.6T Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e95B \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eMacan S 3.0T\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e(2014+)\u003c\/li\u003e\n\u003cli\u003eMacan S (G2) 3.0T (2019-Present)\u003c\/li\u003e\n\u003cli\u003eMacan Turbo 3.6T (2014+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4 class=\"unreset\"\u003e\u003cstrong\u003ePerformance Gains\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003ePower Gain\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr class=\"content-list\"\u003e\n\u003ctd\u003e\n\u003cspan class=\"title\"\u003ePOWER\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"symbol\"\u003e+\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"num1\"\u003e8.48ps\u003c\/span\u003e\u003cbr\u003eat\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"num2\"\u003e4900\u003c\/span\u003erpm\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan class=\"title\"\u003eTORQUE\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"symbol\"\u003e+\u003c\/span\u003e\u003cspan\u003e 13.83\u003c\/span\u003e\u003cspan class=\"num1\"\u003en\u003c\/span\u003em\u003cbr\u003eat\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"num2\"\u003e3100\u003c\/span\u003erpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eStone Valvetronic System Installation \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" height=\"672\" width=\"1195\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003eQP503ASQ (Macan S \/ Macan Turbo)\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eQP503BSQ (Macan S - G2)\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4 class=\"unreset\"\u003e\u003cstrong\u003ePhotos \u0026amp; Videos\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Porsche_95B_Cat-Back_Valvetronic_Exhaust_System_Inc._Macan_S_3.0T_Macan_Turbo_3.6T_Stone_Exhaust_USA-1_600x600.png?v=1594984013\" alt=\"Stone Exhaust Porsche 95B Cat-Back Valvetronic Exhaust System (Inc. Macan S 3.0T \u0026amp; Macan Turbo 3.6T) - \"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Porsche_95B_Cat-Back_Valvetronic_Exhaust_System_Inc._Macan_S_3.0T_Macan_Turbo_3.6T_Stone_Exhaust_USA-2_600x600.png?v=1594984023\" alt=\"Stone Exhaust Porsche 95B Cat-Back Valvetronic Exhaust System (Inc. Macan S 3.0T \u0026amp; Macan Turbo 3.6T) - \"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Porsche_95B_Cat-Back_Valvetronic_Exhaust_System_Inc._Macan_S_3.0T_Macan_Turbo_3.6T_Stone_Exhaust_USA-3_600x600.png?v=1594984030\" alt=\"Stone Exhaust Porsche 95B Cat-Back Valvetronic Exhaust System (Inc. Macan S 3.0T \u0026amp; Macan Turbo 3.6T) - \"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Porsche_95B_Cat-Back_Valvetronic_Exhaust_System_Inc._Macan_S_3.0T_Macan_Turbo_3.6T_Stone_Exhaust_USA-4_600x600.png?v=1594984037\" alt=\"Stone Exhaust Porsche 95B Cat-Back Valvetronic Exhaust System (Inc. Macan S 3.0T \u0026amp; Macan Turbo 3.6T) - \"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Porsche_95B_Cat-Back_Valvetronic_Exhaust_System_Inc._Macan_S_3.0T_Macan_Turbo_3.6T_Stone_Exhaust_USA-5_600x600.png?v=1594984045\" alt=\"Stone Exhaust Porsche 95B Cat-Back Valvetronic Exhaust System (Inc. Macan S 3.0T \u0026amp; Macan Turbo 3.6T) - \"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003ePorsche 95B Macan S 3.0T with Stone Eddy DP + Cat-back Valvetronic System Sound\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003e\u003ciframe width=\"1195\" height=\"672\" src=\"https:\/\/www.youtube.com\/embed\/5MhzZm7_NOg\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Macan S 3.0T \u0026 Macan Turbo 3.6T \/ Flat Cut Gloss Carbon Fibre (102mm)","offer_id":64545048002909,"sku":"QP503ASQ-1020CG","price":4754.78,"currency_code":"GBP","in_stock":true},{"title":"Macan S (G2) 3.0T \/ Flat Cut Gloss Carbon Fibre (102mm)","offer_id":64545048035677,"sku":"QP503BSQ-1020CG","price":4802.81,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1y20KDb5ciKHrBv8tl5DZGL-WXX7iNcGp_a26befa7-76b3-4532-aa1b-3e6287875145.jpg?v=1777364783"},{"product_id":"stone-exhaust-mercedes-benz-m276-w-s-c205-w213-c238-eddy-catalytic-downpipe-inc-c400-c450-c43-e400-e43","title":"Stone Exhaust Mercedes-Benz M276\/M276 RHD W\/S\/C205 W213\/C238 Eddy Catalytic Downpipe (Inc. C400, C450, C43, E400 \u0026 E43)","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eMeet the latest technology that adheres to the world's increasingly stringent environmental regulations at the same time enhances performance to another level. In comparison to commercially available linear frustums, the \"eddy catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of horsepower tests and straight downpipes, our patented eddy catalytic technology can effectively increase horsepower and torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement. No more delayed or error code problem.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation of the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA special 3D design able to achieve a perfectly matching model with the original pipe. the same installation applies, no need to modify.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUK MOT friendly and Euro 6 Compliant\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the Exhaust System found on the Mercedes-Benz AMG M276 \u0026amp; M276 RHD C400, C450, C43, E400 \u0026amp; E43.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eM276\/\u003cb data-mce-fragment=\"1\"\u003eM276 RHD\u003c\/b\u003e Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMercedes-Benz C-Class\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW205\u003cspan\u003e C400 4MATIC (2015+)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eW205 C450 AMG 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eW205 AMG C43 4MATIC (2016+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eS205 C400 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eS205 C450 AMG 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eC205\u003cspan\u003e C400 4MATIC\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(2015+)\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eC205 AMG C43 4MATIC (2016+)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003cspan\u003eMercedes-Benz  E-Class\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW213 E400 (2016+)\u003c\/li\u003e\n\u003cli\u003eW213 E450 (2016+)\u003c\/li\u003e\n\u003cli\u003eW213 E43 (2016+)\u003c\/li\u003e\n\u003cli\u003eC238 E400 (2016+)\u003c\/li\u003e\n\u003cli\u003eC238 E450 (2016+)\u003c\/li\u003e\n\u003cli\u003eC238 E43 (2016+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eM210E (M276)\u003c\/p\u003e\n\u003cp\u003eM210ER (M276 RHD)\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePhotos \u0026amp; Videos \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eMercedes Benz AMG M276 S205 C43 with Stone Exhaust Eddy Catalytic DP + Valvetronic Catback Sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/Gq9opaQNAqw\" height=\"672\" width=\"1195\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStock V.S Stone Exhaust Eddy Catalytic DP\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust Mercedes-Benz M276 W\/S\/C205 W213\/C238 Eddy Catalytic Downpipe (Inc. C400, C450, C43, E400 \u0026amp; E43) | Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled_1d8f90c8-eaf9-4fd1-aee5-e30a42bd4a41_600x600.png?v=1590171589\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitted Photo(s)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust Mercedes-Benz M276 W\/S\/C205 W213\/C238 Eddy Catalytic Downpipe (Inc. C400, C450, C43, E400 \u0026amp; E43) | Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled1_06d34fe4-87c5-4c57-998d-0f258f9e6591_600x600.png?v=1590171597\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust Mercedes-Benz M276 W\/S\/C205 W213\/C238 Eddy Catalytic Downpipe (Inc. C400, C450, C43, E400 \u0026amp; E43) | Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled2_35ab11ac-acc4-4c06-a405-4cd859aad41e_600x600.png?v=1590171606\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"M276 \/ No Clamp \u0026 Sealing Ring","offer_id":64545049248093,"sku":"M210E","price":2487.38,"currency_code":"GBP","in_stock":true},{"title":"M276 \/ With Clamp \u0026 Sealing Ring","offer_id":64545049280861,"sku":"M210E-with","price":2537.89,"currency_code":"GBP","in_stock":true},{"title":"M276 RHD \/ No Clamp \u0026 Sealing Ring","offer_id":64545049313629,"sku":"M210ER","price":2537.89,"currency_code":"GBP","in_stock":true},{"title":"M276 RHD \/ With Clamp \u0026 Sealing Ring","offer_id":64545049346397,"sku":"M210ER-with","price":2487.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/20170714180258_5b45f33a-e22a-451f-831c-5f23b4311ba4.png?v=1777364787"},{"product_id":"stone-exhaust-mercedes-benz-m276-w-s-c205-w213-c238-catless-downpipe-inc-c400-c450-c43-e400-e43","title":"Stone Exhaust Mercedes-Benz M276\/M276 RHD W\/S\/C205 W213\/C238 Catless Downpipe (Inc. C400, C450, C43, E400 \u0026 E43)","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eIn order to get even better efficiency for the section of exhaust turbine, as well as to prevent multiple welding positions in the downpipe section, which generates ash in the pipe while welding, causing bad exhaust efficiency, and then generates vaper lock and thus inability to exhaust, Stone Exhaust uses a variety of smart ideas in downpipe design. The company employs flow velocity measurement software in 3D and the technique of one-piece bend pipes, along with mechanical arms which accurately welds without generating ash in the pipe wall in order to further exhaust efficiency of De-Cat downpipes. It is a perfect and effective product which has surpassed all similar products in the market.\u003c\/span\u003e\n\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCatless downpipe for C400, C450, C43, E400 \u0026amp; E43\u003c\/li\u003e\n\u003cli\u003eCrisscross welding to strengthen turbo flange\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003eMachine Welding\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e100% OEM Fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the Exhaust System found on the Mercedes-Benz M276 \u0026amp; M276 RHD C400, C450, C43, E400 \u0026amp; E43. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm. \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art. \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eM276\/M276 RHD Engine\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMercedes-Benz C-Class\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW205\u003cspan\u003e C400 4MATIC (2015+)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eW205 C450 AMG 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eW205 AMG C43 4MATIC (2016+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eS205 C400 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eS205 C450 AMG 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eC205\u003cspan\u003e C400 4MATIC\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(2015+)\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eC205 AMG C43 4MATIC (2016+)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003cspan\u003eMercedes-Benz  E-Class\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW213 E400 (2016+)\u003c\/li\u003e\n\u003cli\u003eW213 E450 (2016+)\u003c\/li\u003e\n\u003cli\u003eW213 E43 (2016+)\u003c\/li\u003e\n\u003cli\u003eC238 E400 (2016+)\u003c\/li\u003e\n\u003cli\u003eC238 E450 (2016+)\u003c\/li\u003e\n\u003cli\u003eC238 E43 (2016+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eM210P (M276)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eM210PR (M276 RHD)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePhotos \u0026amp; Videos \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eMercedes Benz S205 C43 Turboback STONE EXHAUST Sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/_w8GHxb1ifY\" height=\"480\" width=\"854\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"M276 \/ No Clamp \u0026 Sealing Ring","offer_id":64545049379165,"sku":"M210P","price":1594.74,"currency_code":"GBP","in_stock":true},{"title":"M276 \/ With Clamp \u0026 Sealing RIng","offer_id":64545049411933,"sku":"M210P-with","price":1563.0,"currency_code":"GBP","in_stock":true},{"title":"M276 RHD \/ No Clamp \u0026 Sealing Ring","offer_id":64545049444701,"sku":"M210PR","price":1563.0,"currency_code":"GBP","in_stock":true},{"title":"M276 RHD \/ With Clamp \u0026 Sealing RIng","offer_id":64545049477469,"sku":"M210PR-with","price":1563.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/20180108123806184_1c6ec08e-c335-4520-8be8-c51501a74717.png?v=1777364787"},{"product_id":"stone-exhaust-mercedes-benz-m274-c-x253-glc250-300-cat-back-valvetronic-exhaust-system","title":"Stone Exhaust Mercedes-Benz M274 C\/X253 GLC250\/300 Cat-Back Valvetronic Exhaust System","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eWe are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System with dual valve(s), to enhance the performance and sound of your Mercedes-Benz C\/X253 GLC250\/300 with the M274 engine, manufactured after 2011. Stone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With their in-house dyno, your BMW exhaust system is proven to produce more power with the\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Cat-Back Valvetronic System comes with a separate remote controller that gives you full control of the exhaust, allowing you to open and close the valves with a click of a button. You can also set it in auto mode for the valves to open at a certain rpm automatically. The Stone Valvetronic system is a plug and play system, and connects to your OBDII port, which can be installed within a few minutes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSTONE Valvetronic\u003cspan\u003eMercedes-Benz\u003c\/span\u003e\u003cspan\u003e C\/X253\u003c\/span\u003e\u003cspan\u003e GLC250\/300\u003c\/span\u003e Exhaust System.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eValvetronic System\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical Welding with Precision\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemote Control with On \/ Off \/ Auto settings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDyno Developed In House\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEliminates drone found on the standard exhaust system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOPF Delete\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eStone offers an OPF delete, which can be included free of charge, this allows you to install the Stone Cat-Back exhaust system on OPF equipped cars without throwing an error code, thus coding out the OPF error code on the ECU is not required.\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the Exhaust System found on the Mercedes-Benz AMG M274-4Matic C\/X253 GLC250\/300.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValvetronic System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stone Valvetronic System was independently researched and developed in house. The system forgoes the conventional design of complicated wiring and the rubber inside the valve which is prone to aging, to ensure longevity.\u003c\/p\u003e\n\u003cp\u003eWith the Valvetronic remote control providing three modes to choose from: ON \/ OFF \/ AUTO, this allows for instant switching between modes in accordance to driving conditions faced. So, let the STONE Valvetronic System adapt to your vehicle’s needs.\u003c\/p\u003e\n\u003cp\u003eThe Valvetronic remote control has 3 modes, ON \/ OFF \/ AUTO, which allows you to open and close the valve at a click of a button. The Auto mode allows customization of the opening and closing of the valve at a predefined RPM.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg height=\"349\" width=\"524\" alt=\"Valvetronic System | Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/valvetronic_4bbd64f4-a300-4728-beae-be9da6be047f_480x480.png?v=1619576730\" data-mce-selected=\"1\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e \u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eM274 Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMercedes-Benz  GLC-Class\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eX253 \u003cspan\u003eGLC 250 4MATIC (2015+)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eX253 GLC 300 (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eX253 GLC 300 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eC253 GLC 250 Coupe 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eC253 GLC 300 Coupe (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eC253 GLC 300 Coupe 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eMP511S\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePhotos \u0026amp; Videos \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eFitted Photos\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled_8067d2e3-6941-4238-a417-b5f168e03900_600x600.png?v=1589443584\" alt=\"Stone Exhaust Mercedes-Benz M274 C\/X253 GLC250\/300 Cat-Back Valvetronic Exhaust System - \"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled1_3d3be5c2-b804-4769-a34b-5fa6577f4334_600x600.png?v=1589443607\" alt=\"Stone Exhaust Mercedes-Benz M274 C\/X253 GLC250\/300 Cat-Back Valvetronic Exhaust System - \"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled2_b9a5cb5e-d7b8-4e94-bfe0-d542ec9ea95f_600x600.png?v=1589443616\" alt=\"Stone Exhaust Mercedes-Benz M274 C\/X253 GLC250\/300 Cat-Back Valvetronic Exhaust System - \"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled3_a9385fc4-28ba-40c6-983e-7e88aaacd656_600x600.png?v=1589443625\" alt=\"Stone Exhaust Mercedes-Benz M274 C\/X253 GLC250\/300 Cat-Back Valvetronic Exhaust System - \"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled4_576217da-6a99-4537-a075-9a8471ad10b1_600x600.png?v=1589443636\" alt=\"Stone Exhaust Mercedes-Benz M274 C\/X253 GLC250\/300 Cat-Back Valvetronic Exhaust System - \"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled5_39e5a574-ecdf-495e-a2b6-1facb686ea02_600x600.png?v=1589443645\" alt=\"Stone Exhaust Mercedes-Benz M274 C\/X253 GLC250\/300 Cat-Back Valvetronic Exhaust System - \"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStone Valvetronic System Installation \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"1195\" height=\"672\" src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMERCEDES BENZ C253 GLC250 M274 x STONE EXHAUST SOUND:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/effT-CRJJqU\" height=\"443\" width=\"788\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545049510237,"sku":"MP511S","price":3623.86,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1JcuBb-oMap05ISguviM-b2IT9T0YbkY2_6c9d4c5d-743a-4f0d-b20b-8086c75fbfe8.jpg?v=1777364788"},{"product_id":"stone-exhaust-mercedes-benz-amg-m276-w-s-c205-c400-450-43-cat-back-valvetronic-exhaust-system","title":"Stone Exhaust Mercedes-Benz AMG M276 W\/S\/C205 C400\/450\/43 Cat-Back Valvetronic Exhaust System","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003eWe are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System, to enhance the performance and sound of your Mercedes-Benz W\/S\/C205 C400\/450\/43 with the M276 engine, manufactured after 2011. Stone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With their in-house dyno, your BMW exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eThe Cat-Back Valvetronic System comes with a separate remote controller that gives you full control of the exhaust, allowing you to open and close the valves with a click of a button. You can also set it in auto mode for the valves to open at a certain rpm automatically. The Stone Valvetronic system is a plug and play system, and connects to your OBDII port, which can be installed within a few minutes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSTONE Valvetronic Mercedes-Benz AMG M276 W\/S\/C205 C400\/450\/43\u003c\/li\u003e\n\u003cli\u003eValvetronic System\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003c\/li\u003e\n\u003cli\u003eMachine Welding\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003eRemote Control with On \/ Off \/ Auto settings\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDyno Developed In House\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEliminates drone found on the standard exhaust system\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOPF Delete\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eStone offers an OPF delete, which can be included free of charge, this allows you to install the Stone Cat-Back exhaust system on OPF equipped cars without throwing an error code, thus coding out the OPF error code on the ECU is not required.\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the Exhaust System found on the Mercedes-Benz AMG M276 W\/S\/C205 C400\/450\/43.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValvetronic System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stone Valvetronic System was independently researched and developed in house. The system forgoes the conventional design of complicated wiring and the rubber inside the valve which is prone to aging, to ensure longevity.\u003c\/p\u003e\n\u003cp\u003eWith the Valvetronic remote control providing three modes to choose from: ON \/ OFF \/ AUTO, this allows for instant switching between modes in accordance to driving conditions faced. So, let the STONE Valvetronic System adapt to your vehicle’s needs.\u003c\/p\u003e\n\u003cp\u003eThe Valvetronic remote control has 3 modes, ON \/ OFF \/ AUTO, which allows you to open and close the valve at a click of a button. The Auto mode allows customization of the opening and closing of the valve at a predefined RPM.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" alt=\"STONE Exhaust Mercedes-Benz AMG M276 W\/S\/C205 C400\/450\/43 Cat-Back Valvetronic Exhaust System - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled_e55d1881-dc86-4cb6-a91c-734c502c538f_600x600.png?v=1587977200\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust System UK Bending - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" width=\"1024x1024\" height=\"1024x1024\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eM276 Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMercedes-Benz  C-Class\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW205 C400 (2014+)\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eW205 C450 AMG (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eW205 AMG C43 (2016+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eS205 C400 (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eS205 C450 AMG (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eC205 C400 (2015+)\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eC205 AMG C43 (2016+)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eStone Valvetronic System Installation \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003ciframe width=\"1195\" height=\"672\" src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003eMP512S  \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePhotos \u0026amp; Videos\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eFitted Photos\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled_b43caaf8-92f0-40ad-b5af-69cf28872256_600x600.png?v=1589286502\" alt=\"Stone Exhaust Mercedes-Benz AMG M276 W\/S\/C205 C400\/450\/43 Cat-Back Valvetronic Exhaust System - \"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled2_fb3b494c-585a-42a9-a81a-71db16cedfe5_600x600.png?v=1589286512\" alt=\"Stone Exhaust Mercedes-Benz AMG M276 W\/S\/C205 C400\/450\/43 Cat-Back Valvetronic Exhaust System - \"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled1_2a730192-6e32-4c00-9dd4-fa1ec697c08f_600x600.png?v=1589286527\" alt=\"Stone Exhaust Mercedes-Benz AMG M276 W\/S\/C205 C400\/450\/43 Cat-Back Valvetronic Exhaust System - \"\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVideo\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSTONE Exhaust Mercedes-Benz AMG M276 S205 C43 Stone Exhaust DECAT w\/ valvetronic in catback SOUND:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/uqwWxCEWsNs\" height=\"477\" width=\"848\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545049575773,"sku":"MP512S","price":4409.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1vpO7Hv0v7T52wv89I9sLhGkOvMBMRVQv_cceb37b7-166c-4158-9a15-6143e42495cc.jpg?v=1777364789"},{"product_id":"stone-exhaust-bmw-b48d-g20-g21-g22-g23-eddy-catalytic-downpipe-opf-inc-320-330i-420i-430i","title":"Stone Exhaust BMW B48D G20 G21 G22 G23 Eddy Catalytic Downpipe - OPF (Inc. 320, 330i, 420i \u0026 430i)","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003eMeet the latest technology that adheres to the world's increasingly stringent environmental regulations at the same time enhances performance to another level. In comparison to commercially available linear frustums, the \"eddy catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of horsepower tests and straight downpipes, our patented eddy catalytic technology can effectively increase horsepower and torque.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement. No more delayed or error code problem.\u003c\/li\u003e\n\u003cli\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation of the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eA special 3D design able to achieve a perfectly matching model with the original pipe. the same installation applies, no need to modify.\u003c\/li\u003e\n\u003cli\u003eSUS304 Stainless steel.\u003c\/li\u003e\n\u003cli\u003eDual Cross-Welding Technology providing substantial increase durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the B48D Exhaust System found on the BMW G20 G21. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValvetronic System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stone Valvetronic System was independently researched and developed in house. The system forgoes the conventional design of complicated wiring and the rubber inside the valve which is prone to aging, to ensure longevity.\u003c\/p\u003e\n\u003cp\u003eWith the Valvetronic remote control providing three modes to choose from: ON \/ OFF \/ AUTO, this allows for instant switching between modes in accordance to driving conditions faced. So, let the STONE Valvetronic System adapt to your vehicle’s needs.\u003c\/p\u003e\n\u003cp\u003eThe Valvetronic remote control has 3 modes, ON \/ OFF \/ AUTO, which allows you to open and close the valve at a click of a button. The Auto mode allows customization of the opening and closing of the valve at a predefined RPM.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Untitled_e55d1881-dc86-4cb6-a91c-734c502c538f_600x600.png?v=1587977200\" alt=\"Stone Exhaust BMW B48 F20 F22 F30 \u0026amp; F32 Eddy Catalytic Downpipe (Inc. 120i, 125i, 220i, 230i, 320i, 330i, 420i \u0026amp; 430i) - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg height=\"1024x1024\" width=\"1024x1024\" style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e B48D Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBMW Z Series\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eG29 Z4 20\/30i (2019+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003eBMW 3 Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eG20 G21 320i (2019+)\u003c\/li\u003e\n\u003cli\u003eG20 G21 330i\/330i xDrive (2017+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBMW 4 Series\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eG22 420\/430i(x)  (2020+)\u003c\/li\u003e\n\u003cli\u003eG23 420\/430i(X)  (2020+)\u003c\/li\u003e\n\u003cli\u003eG26 420\/430i(x)  (2020+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eA218E\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured By\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhausts\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2\u003cspan\u003e \u003c\/span\u003eYear Warranty\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmission Notice \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eVarious U.S. states and the U.S. federal government have individual laws regulating the use of aftermarket exhaust parts and system, especially when the stock system is modified, remove, or if you are replacing original catalysts. Please consult the appropriate law department in your area before installing any aftermarket part or system on your vehicle to ensure compliance with all applicable laws. The purchasers are entirely responsible for informing themselves of the applicable laws where the products are to be used and to comply with those laws.\u003c\/span\u003e\u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545084080477,"sku":"A218E","price":1948.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1HSbZT-cDhVDJLiEYgfP53byUTSszNzyX_b5dcd3af-8eb5-4b70-9f2b-1686c59cf6de.jpg?v=1777364950"},{"product_id":"stone-exhaust-volvo-v542-541-v90-t5-2-0t-catless-downpipe","title":"Stone Exhaust Volvo V542\/541 V90 T5 2.0T Catless Downpipe","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eIn order to get even better efficiency for the section of exhaust turbine, as well as to prevent multiple welding positions in the downpipe section, which generates ash in the pipe while welding, causing bad exhaust efficiency, and then generates vaper lock and thus inability to exhaust, Stone Exhaust uses a variety of smart ideas in downpipe design. The company employs flow velocity measurement software in 3D and the technique of one-piece bend pipes, along with mechanical arms which accurately welds without generating ash in the pipe wall in order to further exhaust efficiency of Catless Downpipe. It is a perfect and effective product which has surpassed all similar products in the market.\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCatless downpipe for V542\/541 V90 T5 with 2.0T engine.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eUnique Flex design to prevent breakage caused by extreme heat \u003c\/li\u003e\n\u003cli\u003eCrisscross welding to strengthen turbo flange\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003eMechanical Welding with Precision\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e100% OEM Fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/article\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the 2.0T Exhaust Systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust System UK Bending\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility - 2.0T Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eV542\/541\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eV90 T5 (2017 +\u003c\/span\u003e\u003cspan\u003e)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eStone Exhaust\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003ePart number \u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003eK205P\u003c\/p\u003e\n\u003c\/article\u003e\n\n\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\n\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\n\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545091780957,"sku":"O205P","price":1162.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/199Glk9_H8uKyxTx3TOeLbNvd5vupkEUA_4ce4d998-6e61-44ee-80d4-e2f90b355357.jpg?v=1777365022"},{"product_id":"stone-cat-back-valvetronic-system-package","title":"Stone Valvetronic System","description":"\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stone Valvetronic System was independently researched and developed in house. The system forgoes the conventional design of complicated wiring and the rubber inside the valve which is prone to ageing, to ensure longevity.\u003c\/p\u003e\n\u003cp\u003eWith the Valvetronic remote control providing three modes to choose from: ON \/ OFF \/ AUTO, this allows for instant switching between modes in accordance to driving conditions faced. So, let the STONE Valvetronic System adapt to your vehicle’s needs.\u003c\/p\u003e\n\u003cp\u003eThe Valvetronic remote control has 3 modes, ON \/ OFF \/ AUTO, which allows you to open and close the valve at a click of a button. The Auto mode allows customization of the opening and closing of the valve at a predefined RPM.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eThe Stone Valvetronic System Package comes with a separate remote controller that gives you full control of the exhaust, allowing you to open and close the valves with a click of a button. You can also set it in auto mode for the valves to open at a certain rpm automatically. The Stone Valvetronic system is a plug and play system and connects to your OBDII port, which can be installed within a few minutes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003cimg alt=\"Valvetronic System | Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/valvetronic_4bbd64f4-a300-4728-beae-be9da6be047f_480x480.png?v=1619576730\" data-mce-fragment=\"1\" data-mce-selected=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/valvetronic_4bbd64f4-a300-4728-beae-be9da6be047f_480x480.png?v=1619576730\"\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eStone Valvetronic System Installation \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e1EV-S (Single Valve)\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e1EV-S2 (Dual Valves)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e1EV-S-1-1 (Remote Control)\u003c\/p\u003e\n\u003cp\u003e1EV-S-1-2 (Controller)\u003c\/p\u003e\n\u003c\/article\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Single Valve System","offer_id":64545245069661,"sku":"1EV-S","price":370.18,"currency_code":"GBP","in_stock":true},{"title":"Dual Valves System","offer_id":64545245102429,"sku":"1EV-S2","price":739.23,"currency_code":"GBP","in_stock":true},{"title":"Remote control + Controller (w\/o wiring)","offer_id":64545245135197,"sku":"1EV-S-1-1 + 1EV-S-1-2","price":438.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/StoneCat-BackValvetronicSystemPackage1_ea4bb28a-aa78-4698-91be-a2ee59af03d1.png?v=1777366657"},{"product_id":"stone-exhaust-bmw-b58c-g01-g02-g14-g15-eddy-catalytic-downpipe-opf-model-inc-840i-x5-40i-x3-m40i-x4-m40i","title":"Stone Exhaust BMW B58C G01 G02 G14 G15 Eddy Catalytic Downpipe - OPF model (Inc. 840i, X5 40i, X3 M40i \u0026 X4 M40i)","description":"\u003ch3 style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eMeet the latest patented technology that adheres to the world's increasingly stringent environmental regulations, at the same time enhances performance to another level on your BMW B58C G14, G15, G16, 840i. In comparison to commercially available linear frustums, the \"eddy catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of conventional straight downpipes, the patented eddy catalytic technology can effectively increase horsepower and torque. In the lower rpm you will be immerse with vast amount of torque until you reach higher rpm where the vortex effect really comes to life and opens up the Catalytic, resulting in a performance similar to a 100 CELL Catalytic. However in the lower rpm, the catalytic will produce efficient and clean emission similar to a 400CEL Catalytic and produce no Check Engine Lights, completely error free.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eOPF Exhaust Design\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo more delayed in power delivery.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eComputer simulation to obtain the best diameter.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpecial 3D design to achieve 100% OEM fitment, no modification required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Premium Grade Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability at the t\u003c\/span\u003e\u003cspan\u003eurbo Flange.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003c\/article\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the B58C Exhaust System found on the G14, G16, 840i. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending_480x480.png?v=1619575566\" alt=\"7 Axis CNC Bending Machine | Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eArt of Welding\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cimg alt=\"Art of Welding | Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_ExhaustDownpipe_Welding_S4_S5_-4_2048x2048_600x600_ee7fc256-8d0c-47fc-bdb7-7ac9438345f0_480x480.png?v=1619578343\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_ExhaustDownpipe_Welding_S4_S5_-4_2048x2048_600x600_ee7fc256-8d0c-47fc-bdb7-7ac9438345f0_480x480.png?v=1619578343\"\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/article\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility - B58C Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBMW 8 Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eG14\/G15\/G16 840i (2018+)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBMW X Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eG01 X3 M40i xDrive (2016-2018)\u003c\/li\u003e\n\u003cli\u003eG02 X4 M40i xDrive (2017-2018)\u003c\/li\u003e\n\u003cli\u003eG05 X5 40i xDrive (2017+)\u003c\/li\u003e\n\u003cli\u003eG06 X6 40i xDrive (2018+)\u003c\/li\u003e\n\u003cli\u003eG07 X7 40i xDrive (2018+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust 2\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eYear Warranty\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eA229E\u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545245954397,"sku":"A229E","price":1987.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1ds2DZQj9bT__mf39RqyMuciJPsgYiIQs_295cd437-973e-424c-a17a-175905ae4c03.jpg?v=1777366664"},{"product_id":"stone-exhaust-bmw-b58d-g20-g21-oem-integrated-valved-catback-exhaust-system-opf-model-m340i-m340i-xdrive","title":"Stone Exhaust BMW B58D G20 G21 OEM Integrated Valved Catback Exhaust System - OPF Model (M340i \u0026 M340i xDrive)","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003eWe are proud to introduce you to the \u003cspan data-mce-fragment=\"1\"\u003eStone OEM Integrated Valve Catback Exhaust\u003c\/span\u003e, to enhance the performance and sound of your BMW G20 Sedan M340i \u0026amp; G21 Touring M340i Drive with the B58D engine, manufactured after 2018. Stone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With their in-house dyno, your BMW exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eThe OEM Integred Valves option allows your exhuast system to operate as standard, where the onboard computer (ECU) will control the opening and closing of the valves automatically.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eYou may wish to add the \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #2b00ff;\"\u003e\u003ca data-mce-fragment=\"1\" style=\"color: #2b00ff;\" href=\"\/products\/stone-cat-back-valvetronic-system-package\" target=\"_blank\" data-mce-href=\"\/products\/stone-cat-back-valvetronic-system-package\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eStone Valvetronic System\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e (Dual Valves) which enables you to control the valves remotely via the stone remote controller.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOEM Integration\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptional Stone Valvetronic System available\u003c\/li\u003e\n\u003cli\u003eOPF Exhaust Design\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003eMachine Welding\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDyno Developed In House\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEliminates drone found on the standard exhaust system\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOPF Delete\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eStone offers an OPF delete, which can be included free of charge, this allows you to install the Stone Cat-Back exhaust system on OPF equipped cars without throwing an error code, thus coding out the OPF error code on the ECU is not required.\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the B58D Exhaust System found on the M340i \u0026amp; M340i xDrive. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg height=\"1024x1024\" width=\"1024x1024\" style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - \" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eB58D Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBMW 3 Series\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eG20 M340i\/M\u003cspan\u003e340i xDrive\u003c\/span\u003e\u003cspan\u003e (2018-2020)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eG21 M\u003cspan\u003e340i xDrive\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(2018-2020)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4 class=\"unreset\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eAP546NB\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003ePhotos \u0026amp; Videos\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eBMW B58D G21 M340i xDrive with Stone Exhaust Eddy Catalytic DP + Valvetronic Cat-back System sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003ciframe width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/3smyzk_ZBcY\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eFitted Photo(s) - Dual Exit with Twin Tailpipes \/ Require Original Bumper\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"Stone Exhaust BMW B58D G20 G21 Cat-Back Valvetronic Exhaust System GPF (M340i \u0026amp; M340i xDrive) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_BMW_B58D_G20_G21_Cat-Back_Valvetronic_Exhaust_System_GPF_M340i_M340i_xDrive_-1_600x600.png?v=1590841564\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"Stone Exhaust BMW B58D G20 G21 Cat-Back Valvetronic Exhaust System GPF (M340i \u0026amp; M340i xDrive) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_BMW_B58D_G20_G21_Cat-Back_Valvetronic_Exhaust_System_GPF_M340i_M340i_xDrive_-6_600x600.png?v=1590841782\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"Stone Exhaust BMW B58D G20 G21 Cat-Back Valvetronic Exhaust System GPF (M340i \u0026amp; M340i xDrive) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_BMW_B58D_G20_G21_Cat-Back_Valvetronic_Exhaust_System_GPF_M340i_M340i_xDrive_-4_600x600.png?v=1590841605\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"Stone Exhaust BMW B58D G20 G21 Cat-Back Valvetronic Exhaust System GPF (M340i \u0026amp; M340i xDrive) - \" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_BMW_B58D_G20_G21_Cat-Back_Valvetronic_Exhaust_System_GPF_M340i_M340i_xDrive_-5_600x600.png?v=1590841623\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545248641373,"sku":"AP546NB","price":3427.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1ROFb2OZ0EuSBr1UA5f34w61n9JzN-k_x_0867340b-1396-4d55-9aa9-9ab60d0c5ad7.jpg?v=1777366679"},{"product_id":"stone-exhaust-mercedes-benz-amg-m256-w213-s213-c238-eddy-catalytic-downpipe-e53-cls450-cls53-gle53-1","title":"Stone Exhaust Mercedes-Benz AMG M256 W213\/S213\/C238  Eddy Catalytic Downpipe (E53, CLS450, CLS53 \u0026 GLE53)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003cspan\u003eenvironmental regulations, at the same time enhances performance to another level on your Mercedes-Benz M256 W213\/S213\/C23 E53, CLS450, CLS53 \u0026amp; GLE53. In comparison to commercially available linear frustums, the \"eddy catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of conventional straight downpipes, the patented eddy catalytic technology can effectively increase horsepower and torque. In the lower rpm you will be immerse with vast amount of torque until you reach higher rpm where the vortex effect really comes to life and opens up the Catalytic, resulting in a performance similar to a 100 CELL Catalytic. However in the lower rpm, the catalytic will produce efficient and clean emission similar to a 400CEL Catalytic and produce no Check Engine Lights, completely error free.\u003c\/span\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement. No more delayed or error code problem.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation of the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA special 3D design able to achieve a perfectly matching model with the original pipe. the same installation applies, no need to modify.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUK MOT friendly and Euro 6 Compliant\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eMercedes M256 W213 E53 AMG with Stone Exhaust Eddy Catalytic Downpipe Sound\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/maFB79foKwU\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e  \u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the Exhaust System found on the Mercedes-Benz AMG M256 E53, CLS450, CLS53 \u0026amp; GLE53.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust System UK Bending\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCompatibility - M256 Engine\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003cspan\u003eMercedes-Benz E-Class\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW213 E53 (2018+)\u003c\/li\u003e\n\u003cli\u003eS213 E53 (2018+)\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eC238 \u003c\/span\u003eE53 (2018+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003cspan\u003eMercedes-Benz CLS-Class\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eC257 CLS450 (2018+)\u003c\/li\u003e\n\u003cli\u003eC257 CLS53 (2018+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMercedes-Benz GLE-Class\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW166 \/ W167 \/ C292 GLE53 (2019+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp\u003e\u003cb\u003ePart Number\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003cp class=\"unreset\"\u003eM228E (Non-OPF)\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eM228EG (OPF)\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Non-OPF","offer_id":64545249231197,"sku":"M228E","price":2537.89,"currency_code":"GBP","in_stock":true},{"title":"OPF","offer_id":64545249263965,"sku":"M228EG","price":2512.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/Image-Coming-Soon_124762b6-4da4-4c0d-9889-53e7bac9f0c0.png?v=1777366690"},{"product_id":"stone-exhaust-volkswagen-ea888-mk2-tiguan-r-cat-back-valvetronic-exhaust-system","title":"Stone Exhaust Volkswagen EA888 MK2 Tiguan R Cat-Back Valvetronic Exhaust System","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003eWe are proud to introduce you to the state of the art Stone Exhaust Valvetronic Cat-Back Exhaust System with dual valves, to enhance the performance and sound of your Volkswagen MK2 Tiguan R with the EA888 engine.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust has been developing world's best exhaust system since 1998, starting with 3D scanning and reverse engineering the OEM system, this allows the Stone engineers to design a 100% OEM fitment exhaust with precision. With our in-house dyno, your BMW exhaust system is proven to produce more power with the enhanced Stone signature exhaust sound.\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eThe Cat-Back Valvetronic System comes with a separate remote controller that gives you full control of the exhaust, allowing you to open and close the valves with a click of a button. You can also set it in auto mode for the valves to open at a certain rpm automatically. The Stone Valvetronic system is a plug and play system, and connects to your OBDII port, which can be installed within a few minutes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eValvetronic System\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePlug and Play OBDII controller\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical Welding with Precision\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIn House Research and Development\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003eRemote Control with On \/ Off \/ Auto settings \u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDyno Developed In House\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eEliminates drone found on the standard exhaust system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOPF Delete\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone offers an OPF delete, which can be included free of charge, this allows you to install the Stone Cat-Back exhaust system on OPF equipped cars without throwing an error code, thus coding out the OPF error code on the ECU is not required.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the Exhaust System found on the Volkswagen Tiguan R.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValvetronic System\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Stone Valvetronic System was independently researched and developed in house. The system forgoes the conventional design of complicated wiring and the rubber inside the valve which is prone to aging, to ensure longevity.\u003c\/p\u003e\n\u003cp\u003eWith the Valvetronic remote control providing three modes to choose from: ON \/ OFF \/ AUTO, this allows for instant switching between modes in accordance to driving conditions faced. So, let the STONE Valvetronic System adapt to your vehicle’s needs.\u003c\/p\u003e\n\u003cp\u003eThe Valvetronic remote control has 3 modes, ON \/ OFF \/ AUTO, which allows you to open and close the valve at a click of a button. The Auto mode allows customization of the opening and closing of the valve at a predefined RPM.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/valvetronic_4bbd64f4-a300-4728-beae-be9da6be047f_480x480.png?v=1619576730\" alt=\"Valvetronic System | Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending_480x480.png?v=1619575566\" alt=\"7 Axis CNC Bending Machine | Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eCompatibility\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eEA888 Engine\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cp class=\"unreset\"\u003eMK2\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eTiguan 2.0 TSI 320 4Motion\/Tiguan R \u003c\/span\u003e(2020+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/V5c4VEyO1EM\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eGP508NSQ\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMore Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStone Exhaust\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 class=\"unreset\"\u003e\u003cstrong\u003ePhotos \u0026amp; Videos\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv\u003e\u003cimg alt=\"Stone Exhaust Volkswagen EA888 MK2 Tiguan R Cat-Back Valvetronic Exhaust System\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Volkswagen_Tiguan_R_0_600x600.jpg?v=1629455790\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"Stone Exhaust Volkswagen EA888 MK2 Tiguan R Cat-Back Valvetronic Exhaust System\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Volkswagen_Tiguan_R_2_600x600.jpg?v=1629455926\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"Stone Exhaust Volkswagen EA888 MK2 Tiguan R Cat-Back Valvetronic Exhaust System\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Volkswagen_Tiguan_R_3_600x600.jpg?v=1629455936\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"Stone Exhaust Volkswagen EA888 MK2 Tiguan R Cat-Back Valvetronic Exhaust System\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Volkswagen_Tiguan_R_8_600x600.jpg?v=1629455948\"\u003e\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eVolkswagen EA888 MK2 Tiguan R Remote Valvetronic Cat-back System Sound \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003ciframe width=\"1239\" height=\"697\" src=\"https:\/\/www.youtube.com\/embed\/Reh1aPHSh_4\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Flat Cut Gloss Carbon Fibre (100mm)","offer_id":64545284161885,"sku":"GP508NSQ-1020CG","price":4016.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1U_m4pryYBGHxXAojqgv88kdwWQYmXrOM_957397d2-4460-4101-b825-73f82005ac94.jpg?v=1777366954"},{"product_id":"stone-exhaust-volvo-v432-431-v60-s60-t5r-2-0t-catless-downpipe","title":"Stone Exhaust Volvo V432\/431 V60\/S60 T5R 2.0T Catless Downpipe","description":"\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003eIn order to get even better efficiency for the section of exhaust turbine, as well as to prevent multiple welding positions in the downpipe section, which generates ash in the pipe while welding, causing bad exhaust efficiency, and then generates vaper lock and thus inability to exhaust, Stone Exhaust uses a variety of smart ideas in downpipe design. The company employs flow velocity measurement software in 3D and the technique of one-piece bend pipes, along with mechanical arms which accurately welds without generating ash in the pipe wall in order to further exhaust efficiency of Catless Downpipe. It is a perfect and effective product which has surpassed all similar products in the market.\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCatless downpipe for Volvo V432\/431 V60\/S60 T5R with 2.0T engine.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eUnique Flex design to prevent breakage caused by extreme heat \u003c\/li\u003e\n\u003cli\u003eCrisscross welding to strengthen turbo flange\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOne Piece Design\u003c\/li\u003e\n\u003cli\u003eMechanical Welding with Precision\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e3D Scanning \u0026amp; Reverse Engineering\u003c\/li\u003e\n\u003cli\u003e100% OEM Fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/article\u003e\n\u003cp class=\"unreset\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the 2.0T Exhaust Systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\" alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending.jpg?v=1572739395\" alt=\"Stone Exhaust System UK Bending\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility - 2.0T Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eV431\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eS60 T5R (201\u003c\/span\u003e\u003cspan\u003e8\u003c\/span\u003e\u003cspan\u003e+)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eV432\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eV60 T5R (2018+)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust One Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eStone Exhaust\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003ePart number \u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp class=\"unreset\"\u003eO203P\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e\n\u003carticle class=\"unreset\" data-scroll-scope=\"\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64545305002333,"sku":"O203P","price":1162.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/1ijgmfsABeja_O3l7CEyadbw-l0xzlHuC_ff4224cf-2c5e-4fef-bad8-8511c92081c8.jpg?v=1777367139"},{"product_id":"stone-exhaust-mercedes-benz-m274-4matic-m264-4matic-w-s-c205-c-x253-w213-c238-eddy-catalytic-downpipe-inc-c200-c250-c300-e250-e300-glc250-glc300","title":"Stone Exhaust Mercedes-Benz M274 4Matic \u0026 M264 4Matic W\/S\/C205 C\/X253 W213\/C238 Eddy Catalytic Downpipe (Inc. C200, C250, C300, E250, E300, GLC250 \u0026 GLC300)","description":"\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cdiv\u003eMeet the latest patented technology that adheres to the world's increasingly stringent environmental regulations, at the same time enhances performance to another level on your Mercedes-Benz M274 4Matic \u0026amp; M264 4Matic W\/S\/C205 C\/X253 W213\/C238, C200, C250, C300, E250, E300, GLC250 \u0026amp; GLC300. In comparison to commercially available linear frustums, the \"eddy catalytic technology\" adopts an arc-packaging method. The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of conventional straight downpipes, the patented eddy catalytic technology can effectively increase horsepower and torque. In the lower rpm you will be immerse with vast amount of torque until you reach higher rpm where the vortex effect really comes to life and opens up the Catalytic, resulting in a performance similar to a 100 CELL Catalytic. However in the lower rpm, the catalytic will produce efficient and clean emission similar to a 400CEL Catalytic and produce no Check Engine Lights, completely error free.\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePatented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo more delayed in power delivery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUsing one of the rare noble metal to help efficiently filter out exhaust gas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComputer simulation to obtain the best diameter\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpecial 3D design to achieve 100% OEM fitment, no modification required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUS304 Premium Grade Stainless steel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDual Cross-Welding Technology providing substantial increase durability at the t\u003c\/span\u003e\u003cspan\u003eurbo Flange.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\n\u003cp\u003e\u003cstrong\u003eMercedes Benz AMG M274 W205 C300 with Stone Exhaust Eddy Catalytic DP + Valvetronic Catback Sound\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/ky_6ElZnbAY\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStone Exhaust Eddy Catalytic Downpipe V.S Stock\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust Mercedes-Benz M274 4Matic \u0026amp; M264 4Matic W\/S\/C205 C\/X253 W213\/C238 Eddy Catalytic Downpipie (Inc. C200, C250, C300, E250, E300, GLC250 \u0026amp; GLC300) | Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/DSC03668_600x600.png?v=1606142957\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitted Photo(s)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Mercedes-Benz_M274_4Matic_M264_4Matic_WSC205_CX253_W213C238_Eddy_Catalytic_Dp-1_600x600.png?v=1606143134\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Mercedes-Benz_M274_4Matic_M264_4Matic_WSC205_CX253_W213C238_Eddy_Catalytic_Dp-2_600x600.png?v=1606143152\"\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e  \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003e\u003cstrong\u003eR\u0026amp;D and 3D Scanning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eStone Exhaust engineers use reverse engineering by 3D scanning OEM parts to understand their functionality and identify weaknesses. Data has been collected continuously in order to analyze factors such as pipe diameter, route and degrees of the bending angles of the Exhaust System found on the Mercedes-Benz C200, C250, C300, E250, E300, GLC250 \u0026amp; GLC300.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cspan\u003eDuring R\u0026amp;D, Stone Exhaust utilizes the 3D simulation software to stimulate the exhaust gas flow movement, thermal and pressure rise zone. Progressive improvements were continually made until the optimal performance was achieved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cimg alt=\"Stone Exhaust System 3D Scanning Reverse Engineering UK\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/1_9336c8b0-c9ea-4822-891c-83490f630707.jpg?v=1572705528\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Axis CNC Bending Machine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStone Exhaust System are constructed utilizing a 7 axis CNC Bending Machine which is the ultimate machine for high levels of precision delivery, necessary for industries such as the aerospace and defense industries.\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\u003c\/ol\u003e\n\u003cp\u003eWith the state-of-the-art bending machine, Stone Exhaust has achieved the industry’s standard to an impressive 98% roundness, whilst maintaining the wear of the outer bore at only 25% at 180\u003cstrong\u003e°\u003c\/strong\u003e. Airflow obstruction and welding fracture problems are prevented by utilizing this technology. With the combination of the CNC Bending machine, Reverse Engineering and 3D Design Scanning, Stone exhaust has created an integrally molded exhaust pipe with an accuracy error under 0.025mm.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/bending_480x480.png?v=1619575566\" alt=\"7 Axis CNC Bending Machine | Stone Exhaust USA\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrisscross and Overlapping Welding Technique\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flange between the turbo and the downpipes reaches extreme temperatures (800℃ to 1100℃) which creates stress on the connection point. By utilizing both welding techniques to increases the width and penetration of welds. This increases the endurance and tolerance of these connection points, leading to quality products with reliable performance.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_1_1024x1024.jpg?v=1572828150\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003eDirect Spot Welding\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eOur highly skilled engineers perform direct spot welding to increase product strength. This is undertaken by mechanical welding arms, proven to achieve greater precision and penetration in their welds compared to manual welding, resulting in an end product that is a work of art.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Stone Exhaust Art of Welding - Stone Exhaust USA\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_Exhaust_Art_of_Welding_-_2_1024x1024.jpg?v=1572828178\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eArt of Welding\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0284\/6300\/5795\/files\/Stone_ExhaustDownpipe_Welding_S4_S5_-4_2048x2048_600x600_ee7fc256-8d0c-47fc-bdb7-7ac9438345f0_480x480.png?v=1619578343\" alt=\"Art of Welding | Stone Exhaust USA\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCompatibility- M274 4Matic \/ M264 4Matic Engine\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cdiv class=\"style-scope ytd-video-primary-info-renderer\"\u003e\n\u003cp\u003eMercedes-Benz C-Class\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW205 C180 7G-TRONIC PLUS (2014+)\u003c\/li\u003e\n\u003cli\u003eW205\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eC200 7G-TRONIC PLUS\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(2014+)\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eW205 C250 (2014+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eW205 C300\/ C300 4MATIC (2014+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eS205 C200\/C200 7G-TRONIC PLUS (2014+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eS205 C250 (2014+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eC205\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eC200\/C200 7G-TRONIC\/C200 9G-TRONIC 4MATIC\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(2016+)\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eC205 C250 (2016+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eC205 C300 (2014+)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"unreset\"\u003e \u003cspan\u003eMercedes-Benz  E-Class\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eW213 E250 (2017+)\u003c\/li\u003e\n\u003cli\u003eW213 E300 (2017+)\u003c\/li\u003e\n\u003cli\u003eC238 E250 (2017+)\u003c\/li\u003e\n\u003cli\u003eC238 E300 (2017+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eMercedes-Benz  GLC-Class\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eX253 \u003cspan\u003eGLC250 4MATIC (2015+)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eX253 GLC300 (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eX253 GLC300 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eC253 GLC250 Coupe 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eC253 GLC300 Coupe (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eC253 GLC300 Coupe 4MATIC (2015+)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eM208AE\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003eStone Exhaust 2\u003cspan\u003e \u003c\/span\u003eYear Warranty\u003c\/p\u003e\n\u003cp class=\"unreset\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimension \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e50cm x 20cm x 18cm \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e3.72 kg \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmission Notice \u003c\/strong\u003e\u003c\/p\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003cspan\u003eVarious U.S. states and the U.S. federal government have individual laws regulating the use of aftermarket exhaust parts and system, especially when the stock system is modified, remove, or if you are replacing original catalysts. Please consult the appropriate law department in your area before installing any aftermarket part or system on your vehicle to ensure compliance with all applicable laws. The purchasers are entirely responsible for informing themselves of the applicable laws where the products are to be used and to comply with those laws.\u003c\/span\u003e\u003c\/article\u003e\n\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e\n\u003carticle data-scroll-scope=\"\" class=\"unreset\"\u003e\u003c\/article\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":64564405305693,"sku":"M208AE","price":1948.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/Mercedes-BenzM274EddyCatalytic_Downpipe2_d3f645b7-a9b5-42b2-85b0-cfb34e5a011a.png?v=1777522166"}],"url":"https:\/\/performancepartsdirect.co.uk\/collections\/stone-exhaust.oembed","provider":"Performance Parts Direct","version":"1.0","type":"link"}