{"product_id":"cts-turbo-hw-558-rear-subframe-insert-set-b8-audi-a4-a5-allroad","title":"CTS Turbo HW-558 Rear Subframe Insert Set B8 Audi A4\/A5\/Allroad","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\u003cp\u003eRear Subframe Insert Set B8 Audi A4\/A5\/Allroad\u003c\/p\u003e\u003cp\u003eHW-558\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eCTS Turbo Rear Subframe Insert Set\u003c\/strong\u003e is designed to \u003cstrong\u003ereduce subframe movement, enhance chassis rigidity, and improve overall handling\u003c\/strong\u003e in your \u003cstrong\u003eAudi B8 A4, A5, and Allroad\u003c\/strong\u003e. These inserts reinforce the factory subframe bushings, reducing deflection and improving power transfer without introducing significant NVH.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eImproves chassis stability and reduces subframe movement.\u003c\/li\u003e\n\u003cli\u003eMade from durable billet aluminum for maximum strength and longevity.\u003c\/li\u003e\n\u003cli\u003eEnhances handling precision and road feedback.\u003c\/li\u003e\n\u003cli\u003eReduces drivetrain slop, resulting in better throttle response and power delivery.\u003c\/li\u003e\n\u003cli\u003eSimple, non-permanent installation—works with factory subframe bushings.\u003c\/li\u003e\n\u003cli\u003eMinimal NVH increase for a balance of comfort and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePerformance Benefits:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTighter handling:\u003c\/strong\u003e Eliminates unwanted movement in the rear subframe, making the car feel more connected to the road.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMore predictable cornering:\u003c\/strong\u003e Improves rear-end stability, especially during hard acceleration, braking, and cornering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced drivetrain efficiency:\u003c\/strong\u003e Reduces deflection for more efficient power transfer to the wheels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIdeal for \u003cstrong\u003edaily drivers and performance enthusiasts\u003c\/strong\u003e looking to improve their Audi’s driving dynamics without compromising ride comfort.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e2009-2016 Audi A4 (B8\/B8.5)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2008-2017 Audi A5 (B8\/B8.5)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2013-2016 Audi Allroad (B8\/B8.5)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cspan\u003eNB: Before ordering, check the rear subframe mounts. If the metal cover is oriented \u003c\/span\u003e\u003cspan\u003efront-to-back (towards the front\/rear)\u003c\/span\u003e\u003cspan\u003e then the inserts are compatible. If the metal cover is oriented \u003c\/span\u003e\u003cspan\u003eleft-to-right (towards the wheels)\u003c\/span\u003e\u003cspan\u003e\n\u003cdiv\u003e\u003cspan\u003e then the inserts will not fit, use CTS-HW-559 instead.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eAlways replace the subframe bolts with genuine Audi parts, and torque to spec: 115Nm + 90deg.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eEach vehicle requires 4x WHT004756A.\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003e\u003c\/p\u003e\u003c\/span\u003e\n\u003c\/div\u003e\u003ch4\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h4\u003e\u003cp\u003ePlease make sure this part matches your vehicle before ordering. We run a compatibility check prior to dispatch using your registration number (UK) or the last 7 digits of your VIN.\u003c\/p\u003e\u003ch4\u003ePart Number\u003c\/h4\u003e\u003cp\u003eHW-558\u003c\/p\u003e\u003ch4\u003eMore Information\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eCTS Turbo\u003c\/p\u003e","brand":"CTS Turbo","offers":[{"title":"Default Title","offer_id":66234283229533,"sku":"CTS-HW-558","price":149.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1069\/0009\/5325\/files\/CTS-HW-558.jpg?v=1792220999","url":"https:\/\/performancepartsdirect.co.uk\/products\/cts-turbo-hw-558-rear-subframe-insert-set-b8-audi-a4-a5-allroad","provider":"Performance Parts Direct","version":"1.0","type":"link"}