{"product_id":"darwinpro-2020-2025-audi-s4-avant-b9-5-bkss-style-carbon-fiber-rear-diffuser","title":"Audi S4 Avant B9.5 BKSS Style Carbon Fiber Rear Diffuser With Exhaust Tips 2020-2025","description":"\u003cp\u003eUpgrade the rear styling and aerodynamic performance of your 2020-2025 Audi S4 Avant B9.5 with this BKSS style carbon fiber rear diffuser with exhaust tips. Designed to enhance the lower rear bumper profile, this diffuser delivers a more aggressive and performance-inspired appearance while maintaining OEM+ integration.\u003c\/p\u003e \u003cp\u003eEngineered specifically for the B9.5 S4 Avant platform, this rear diffuser follows the factory bumper contours for precise fitment and seamless installation. The BKSS design improves rear-end definition and integrates with exhaust tip styling to create a more dynamic and sporty rear profile.\u003c\/p\u003e \u003cp\u003eConstructed from high-quality carbon fiber materials, this diffuser offers lightweight durability, strength, and a premium finish. Available in multiple carbon fiber options, it ensures long-term reliability while enhancing both visual appeal and aerodynamic efficiency.\u003c\/p\u003e \u003ch3\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003c\/h3\u003e \u003ctable style=\"width:100%; max-width:650px; border-collapse:collapse; border:1px solid #e5e5e5;\"\u003e \u003ctr\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px; font-weight:600;\"\u003eVehicle\u003c\/td\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px;\"\u003eAudi S4 Avant\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px; font-weight:600;\"\u003eChassis\u003c\/td\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px;\"\u003eB9.5\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px; font-weight:600;\"\u003eModel Years\u003c\/td\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px;\"\u003e2020-2025\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px; font-weight:600;\"\u003eProduct Type\u003c\/td\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px;\"\u003eRear Diffuser\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px; font-weight:600;\"\u003eStyle\u003c\/td\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px;\"\u003eBKSS Style\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px; font-weight:600;\"\u003eMaterial\u003c\/td\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px;\"\u003eCarbon Fiber (CFRP \/ FGCF \/ Dry Carbon)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px; font-weight:600;\"\u003eInstallation\u003c\/td\u003e \u003ctd style=\"border:1px solid #e5e5e5; padding:10px;\"\u003eProfessional installation recommended\u003c\/td\u003e \u003c\/tr\u003e \u003c\/table\u003e \u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDesigned for 2020-2025 Audi S4 Avant B9.5 models\u003c\/li\u003e \u003cli\u003eBKSS style rear diffuser with integrated exhaust tip design\u003c\/li\u003e \u003cli\u003eEnhances rear aerodynamics and airflow management\u003c\/li\u003e \u003cli\u003eImproves rear bumper definition and aggressive styling\u003c\/li\u003e \u003cli\u003ePrecision fitment aligned with factory bumper lines\u003c\/li\u003e \u003cli\u003eConstructed from high-quality carbon fiber materials\u003c\/li\u003e \u003cli\u003eAvailable in multiple carbon fiber finishes\u003c\/li\u003e \u003cli\u003eLightweight and durable construction\u003c\/li\u003e \u003cli\u003eOEM+ fit and seamless integration\u003c\/li\u003e \u003cli\u003eSuitable for street and performance builds\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003e\u003cstrong\u003eConfiguration Options\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eCFRP\u003c\/strong\u003e – Standard carbon fiber construction with gloss finish\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eFGCF\u003c\/strong\u003e – Fiberglass reinforced carbon fiber option\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eDry Carbon\u003c\/strong\u003e – Lightweight pre-preg carbon fiber with premium finish\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eRear diffuser\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Exhaust tips may vary depending on setup. Professional installation is recommended to ensure proper alignment and fitment.\u003c\/p\u003e \u003ch3\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eProfessional installation recommended\u003c\/li\u003e \u003cli\u003eMounts to factory rear bumper\u003c\/li\u003e \u003cli\u003eMay require alignment with exhaust system\u003c\/li\u003e \u003cli\u003eNo major modification required\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e2020-2025 Audi S4 Avant B9.5\u003c\/li\u003e \u003c\/ul\u003e","brand":"Darwin Pro","offers":[{"title":"CFRP – Carbon Fiber Reinforced Polymer - Pre-Order","offer_id":54084340777235,"sku":"CF8379BKSS-RD","price":2824.95,"currency_code":"USD","in_stock":true},{"title":"FGCF – Forged Gloss Carbon Fiber - Pre-Order","offer_id":54084340810003,"sku":"FGCF8379BKSS-RD","price":3384.95,"currency_code":"USD","in_stock":true},{"title":"DRYCF - Autoclaved Carbon Fiber - Pre-Order","offer_id":54084340842771,"sku":"DRYCF8379BKSS-RD","price":3669.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0020\/8486\/4053\/files\/DarwinPRO2020-2025AudiS4AvantB9.5BKSSCarbonFiberBODYKITCF8379BKSS_3.jpg?v=1776201610","url":"https:\/\/bayoptiks.com\/products\/darwinpro-2020-2025-audi-s4-avant-b9-5-bkss-style-carbon-fiber-rear-diffuser","provider":"Bayoptiks","version":"1.0","type":"link"}