{"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","url":"https:\/\/performancepartsdirect.co.uk\/products\/stone-exhaust-bmw-n55-f20-f22-eddy-catalytic-downpipe-m135i-m235i","provider":"Performance Parts Direct","version":"1.0","type":"link"}