{"product_id":"2017-2019-audi-a5-s-line-s5-b9-coupe-sportback-s5-style-rear-bumper-diffuser-carbon-fiber","title":"2017–2019 Audi A5 S-Line \/ S5 B9 Coupe \u0026 Sportback S5 Style Rear Bumper Diffuser – Carbon Fiber","description":"\u003ch2\u003e2017–2019 Audi A5 S-Line \/ S5 B9 Coupe \u0026amp; Sportback S5 Style Rear Bumper Diffuser – Carbon Fiber\u003c\/h2\u003e\n\n\u003cp\u003eUpgrade the lower rear profile of your Audi A5 S-Line or S5 B9 with this carbon fiber rear bumper diffuser. Finished in deep gloss black carbon and spanning 150 cm across the lower bumper, the S5-style profile adds width and visual aggression for a more planted, performance-oriented rear stance.\u003c\/p\u003e\n\n\u003ch3\u003eBuild\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Genuine carbon fiber, manufactured to precise tolerances for consistent panel quality, high structural integrity, and an authentic weave appearance over carbon-look ABS or fiberglass alternatives\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface finish:\u003c\/strong\u003e Deep gloss black finish with a UV-resistant coating that showcases the natural carbon weave and resists UV exposure, moisture, and road debris through sustained outdoor and driving use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Single-piece diffuser for the lower rear bumper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePanel width:\u003c\/strong\u003e 150 cm across\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDesign \u0026amp; Aerodynamics\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eS5-style profile:\u003c\/strong\u003e Clean, factory-derived diffuser shape that brings the S5 rear-end look to the A5 S-Line\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAggressive stance:\u003c\/strong\u003e Adds width and visual weight to the lower rear for a more planted, track-inspired rear end\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbon aesthetic:\u003c\/strong\u003e Directional weave and gloss black finish complement the factory B9 bodywork for a coordinated, motorsport-grade look\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2017–2019 Audi A5 S-Line B9\u003c\/strong\u003e — Coupe (2-door) and Sportback (4-door)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2017–2019 Audi S5 B9\u003c\/strong\u003e — Coupe (2-door) and Sportback (4-door)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFits the A5 S-Line and S5 factory rear bumper only\u003c\/strong\u003e — not compatible with the standard non-S-Line A5, aftermarket bumpers, or non-B9 configurations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfirm your body style before ordering\u003c\/strong\u003e — verify whether your car is the Coupe or Sportback and check the rear bumper configuration matches\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × carbon fiber rear bumper diffuser\u003c\/li\u003e\n  \u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface prep:\u003c\/strong\u003e Thoroughly clean and degrease the rear bumper before installation to ensure correct panel seating and secure fitment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlignment:\u003c\/strong\u003e Dry-fit and check the diffuser sits centred and even across the bumper, with consistent panel gaps on both sides, before final fitting\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfessional installation recommended\u003c\/strong\u003e for correct positioning, panel alignment, and finish quality given the 150 cm panel width\u003c\/li\u003e\n  \u003cli\u003ePlan for a second pair of hands during fitting given the panel's span\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBefore You Install\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm your car is an A5 \u003cstrong\u003eS-Line\u003c\/strong\u003e or S5 B9 (2017–2019) before ordering — this will not fit the standard non-S-Line A5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVerify your body style and rear bumper shape\u003c\/strong\u003e against the product images before ordering, as the Coupe and Sportback rear ends differ\u003c\/li\u003e\n  \u003cli\u003eTake care when parking rear-in — full-width lower rear panels sit close to kerbs and parking blocks\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K2 Industries","offers":[{"title":"Default Title","offer_id":51499741086002,"sku":"1600387930251","price":579.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0875\/7365\/9954\/files\/1_16355f8a-18f8-4039-bd85-8ce71ea83e8e.jpg?v=1784677369","url":"https:\/\/peterscarparts.com\/products\/2017-2019-audi-a5-s-line-s5-b9-coupe-sportback-s5-style-rear-bumper-diffuser-carbon-fiber","provider":"PETER'S CAR PARTS","version":"1.0","type":"link"}