{"title":"Audi A4 \/ S4 B9.5 Carbon Fiber Rear Diffusers","description":"\u003cp\u003eUpgrade the rear profile of your \u003cstrong\u003eAudi A4 \/ S4 B9.5\u003c\/strong\u003e with carbon fiber rear diffusers designed for selected A4 S line and S4 Sedan bumper configurations. The B9.5 facelift uses strong horizontal rear styling to emphasize the car’s width, and a properly matched diffuser can add more definition to the lower bumper while keeping the clean, factory-inspired character of the A4 and S4.\u003c\/p\u003e\n\n\u003cp\u003eThis collection focuses specifically on \u003cstrong\u003eAudi A4 \/ S4 B9.5 carbon fiber rear diffusers\u003c\/strong\u003e, including carbon fiber and dry carbon replacement options. Fitment depends on the rear bumper—not the A4 or S4 badge alone. Standard A4, A4 S line and S4 bumper layouts should not be assumed to use the same diffuser, and exhaust layout or rear sensor equipment may also affect compatibility.\u003c\/p\u003e\n\n\u003cp\u003ePlease check the fitment notes on each product before ordering. For more vehicle-specific exterior upgrades, explore \u003ca href=\"https:\/\/ahacarbon.com\/\"\u003eAHACARBON\u003c\/a\u003e or browse our \u003ca href=\"https:\/\/ahacarbon.com\/collections\/carbon-fiber-body-kits-for-audi-a4-b9-s4-2020up\"\u003eAudi A4 \/ S4 B9.5 parts collection\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"audi-s4-a4-b10-s-line-sedan-2021up-carbon-fiber-rear-bumper-diffuser-lip-body-kit","title":"Audi S4 A4 Sline B10 Sedan 2021UP Rear Bumper Diffuser Carbon Fiber","description":"\u003cstyle\u003e\u003c!--\n.rte h4 {margin-top: 0px;}\n--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eAhacarbon\u003c\/strong\u003e carbon fiber \u003cstrong\u003erear bumper diffuser\u003c\/strong\u003e for \u003cstrong\u003eAudi A4 B10 Sline S4 Sedan 2021UP\u003c\/strong\u003e. This diffuser is crafted from genuine 3x3 carbon fiber that will nicely match any other carbon fiber parts you have on your car from Ahacarbon. This carbon fiber rear diffuser for Audi S4\/A4 Sline is backed by our fitment and quality guarantee to ensure that this product is going to fit well and hold its quality. The diffuser is a direct replacement for the factory plastic diffuser, no modifications are needed and is a quick and easy install, simply unbolt your factory diffuser and mount ours using the self tapping screws included. Professional installation is still recommended. Our carbon fiber S4 diffuser will fit 2021UP Audi S4 A4 B10 Sline Sedan 4-Door. To ensure that the diffuser has a nice sheen and does not fade we complete the rear diffuser with our high quality double layered anti-UV clear coat to ensure that this product will not fade or discolor over time. Choose Ahacarbon carbon fiber bumper diffuser for your Audi carbon fiber needs and receive a product you can be proud to install on your vehicle.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cb\u003eFitment:\u003c\/b\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eModel: for Audi A4 B10 Sline S4 Sedan\u003c\/li\u003e\n\u003cli\u003eYear: 2021 2022 +\u003c\/li\u003e\n\u003cli\u003eNote: Not for Audi A4 B10 Base Models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cb\u003e\u003cspan\u003eImportant Notices:\u003c\/span\u003e\u003c\/b\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePls check the above fitment information or send us car pictures to verify before order, thanks a lot!\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Quality 3X3 weave carbon fiber\u003c\/li\u003e\n\u003cli\u003eFunctions: Light and durable, create a new iconic look, enhancing the aerodynamic performance of the car\u003c\/li\u003e\n\u003cli\u003eProcessing: 3D design, CNC moulding, test installation on real car, fitment guaranteed\u003c\/li\u003e\n\u003cli\u003eSurface finish: Double layered UV-Protected clear coating, shining and smooth surface\u003c\/li\u003e\n\u003cli\u003ePacking: Multilayer protected export carton, shockproof and crashproof\u003c\/li\u003e\n\u003cli\u003eInstallation: Replacement style, use factory screws. Recommend professional installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Ahacarbon","offers":[{"title":"Default Title","offer_id":39575374790738,"sku":"JC-KF322","price":800.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/0281\/2242\/files\/AudiS4A4SlineB10SedanCarbonFiberRearBumperDiffuserValanceLip.jpg?v=1684996006"},{"product_id":"audi-s4-a4-b10-sline-sedan-2021up-dry-carbon-fiber-rear-bumper-diffuser-lip","title":"Audi S4 A4 Sline B10 Sedan 2021UP Rear Bumper Diffuser Dry Carbon Fiber","description":"\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/tU44ZEMVo1k\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cstyle\u003e\u003c!--\n.rte h4 {margin-top: 0px;}\n--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eAhacarbon\u003c\/strong\u003e carbon fiber \u003cstrong\u003erear bumper diffuser\u003c\/strong\u003e for \u003cstrong\u003eAudi A4 B10 Sline S4 Sedan 2021UP\u003c\/strong\u003e. This diffuser is crafted from genuine 3x3 carbon fiber that will nicely match any other carbon fiber parts you have on your car from Ahacarbon. This carbon fiber rear diffuser for Audi S4\/A4 Sline is backed by our fitment and quality guarantee to ensure that this product is going to fit well and hold its quality. The diffuser is a direct replacement for the factory plastic diffuser, no modifications are needed and is a quick and easy install, simply unbolt your factory diffuser and mount ours using the self tapping screws included. Professional installation is still recommended. Our carbon fiber S4 diffuser will fit 2021UP Audi S4 A4 B10 Sline Sedan 4-Door. To ensure that the diffuser has a nice sheen and does not fade we complete the rear diffuser with our high quality double layered anti-UV clear coat to ensure that this product will not fade or discolor over time. Choose Ahacarbon carbon fiber bumper diffuser for your Audi carbon fiber needs and receive a product you can be proud to install on your vehicle.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cb\u003eFitment:\u003c\/b\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eModel: for Audi A4 B10 Sline S4 Sedan\u003c\/li\u003e\n\u003cli\u003eYear: 2021 2022 +\u003c\/li\u003e\n\u003cli\u003eNote: Not for Audi A4 B10 Base Models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cb\u003e\u003cspan\u003eImportant Notices:\u003c\/span\u003e\u003c\/b\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePls check the above fitment information or send us car pictures to verify before order, thanks a lot!\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIf your car has a rear sensor door, please order it prudently, the function of sensor may be blocked after the product is installed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Quality 3X3 weave carbon fiber\u003c\/li\u003e\n\u003cli\u003eFunctions: Light and durable, create a new iconic look, enhancing the aerodynamic performance of the car\u003c\/li\u003e\n\u003cli\u003eProcessing: 3D design, CNC moulding, test installation on real car, fitment guaranteed\u003c\/li\u003e\n\u003cli\u003eSurface finish: Double layered UV-Protected clear coating, shining and smooth surface\u003c\/li\u003e\n\u003cli\u003ePacking: Multilayer protected export carton, shockproof and crashproof\u003c\/li\u003e\n\u003cli\u003eInstallation: Replacement style, use factory screws. Recommend professional installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Ahacarbon","offers":[{"title":"New","offer_id":42025977380946,"sku":"ML-YWW037-PRO-1","price":1118.99,"currency_code":"USD","in_stock":true},{"title":"New(small flaw)","offer_id":42025977413714,"sku":"ML-YWW037-PRO-FX","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/0281\/2242\/products\/1_1c390276-e27e-4f6a-81fb-8936b6d330a1.jpg?v=1646441682"},{"product_id":"audi-s4-a4-b10-sline-sedan-dry-carbon-fiber-rear-bumper-diffuser-valance-lip","title":"Audi S4 A4 B10 Sline Sedan 2021UP Rear Bumper Diffuser Dry Carbon Fiber","description":"\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/tU44ZEMVo1k\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cstyle\u003e\u003c!--\n.rte h4 {margin-top: 0px;}\n--\u003e\u003c\/style\u003e\n\u003cp\u003e\u003cstrong\u003eAhacarbon\u003c\/strong\u003e carbon fiber \u003cstrong\u003erear bumper diffuser\u003c\/strong\u003e for \u003cstrong\u003eAudi A4 B10 Sline S4 Sedan 2021UP\u003c\/strong\u003e. This diffuser is crafted from genuine 3x3 carbon fiber that will nicely match any other carbon fiber parts you have on your car from Ahacarbon. This carbon fiber rear diffuser for Audi S4\/A4 Sline is backed by our fitment and quality guarantee to ensure that this product is going to fit well and hold its quality. The diffuser is a direct replacement for the factory plastic diffuser, no modifications are needed and is a quick and easy install, simply unbolt your factory diffuser and mount ours using the self tapping screws included. Professional installation is still recommended. Our carbon fiber S4 diffuser will fit 2021UP Audi S4 A4 B10 Sline Sedan 4-Door. To ensure that the diffuser has a nice sheen and does not fade we complete the rear diffuser with our high quality double layered anti-UV clear coat to ensure that this product will not fade or discolor over time. Choose Ahacarbon carbon fiber bumper diffuser for your Audi carbon fiber needs and receive a product you can be proud to install on your vehicle.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cb\u003eFitment:\u003c\/b\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eModel: for Audi A4 B10 Sline S4 Sedan\u003c\/li\u003e\n\u003cli\u003eYear: 2021 2022 +\u003c\/li\u003e\n\u003cli\u003eNote: Not for Audi A4 B10 Base Models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cb\u003e\u003cspan\u003eImportant Notices:\u003c\/span\u003e\u003c\/b\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePls check the above fitment information or send us car pictures to verify before order, thanks a lot!\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIf your car has a rear sensor door, please order it prudently, the function of sensor may be blocked after the product is installed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Quality 3X3 weave carbon fiber\u003c\/li\u003e\n\u003cli\u003eFunctions: Light and durable, create a new iconic look, enhancing the aerodynamic performance of the car\u003c\/li\u003e\n\u003cli\u003eProcessing: 3D design, CNC moulding, test installation on real car, fitment guaranteed\u003c\/li\u003e\n\u003cli\u003eSurface finish: Double layered UV-Protected clear coating, shining and smooth surface\u003c\/li\u003e\n\u003cli\u003ePacking: Multilayer protected export carton, shockproof and crashproof\u003c\/li\u003e\n\u003cli\u003eInstallation: Replacement style, use factory screws. Recommend professional installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Ahacarbon","offers":[{"title":"Default Title","offer_id":40035048423506,"sku":"ML-YWW029-PRO","price":1118.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/0281\/2242\/products\/AudiS4A4B9.5SlineSedanDryCarbonFiberRearBumperDiffuserValanceLip_1.jpg?v=1657103115"}],"url":"https:\/\/ahacarbon.com\/en-ca\/collections\/audi-a4-s4-b9-5-carbon-fiber-rear-diffusers.oembed","provider":"Ahacarbon","version":"1.0","type":"link"}