{"product_id":"milltek-resonated-cat-back-exhaust-for-audi-b9-s5-coupe-brushed-titanium-tips-ssxau681","title":"Milltek Resonated Cat-Back Exhaust for Audi B9 S5 Coupe, Brushed Titanium Tips","description":"\u003cp\u003eMilltek Resonated Cat-Back Exhaust System for Audi B9 S5 3.0 V6 Turbo Coupe and Cabriolet (Non-Sport Diff models only). Direct factory fitment replacement engineered to enhance exhaust flow, refine tone character, and improve aesthetics while maintaining OEM+ compatibility.\u003c\/p\u003e\n\u003cp\u003eHand-finished T304L stainless steel construction with mandrel-bent 2.50\" (63.50mm) diameter piping and quad GT-100 titanium trim outlets. Resonated design eliminates excessive drone while preserving the full-throttle character of the V6 engine. Uses factory hangers and mounts-no modification required. Engineered in-house with dyno testing to validate performance gains and confirm tone profile.\u003c\/p\u003e\n\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi S5 B9 Coupe (2017-2024)\u003c\/li\u003e\n\u003cli\u003eAudi S5 B9 Cabriolet (2017-2024)\u003c\/li\u003e\n\u003cli\u003eNon-Sport Differential models only\u003c\/li\u003e\n\u003cli\u003e3.0L V6 Turbo (TFSI)\u003c\/li\u003e\n\u003cli\u003eCat-back system (requires factory cat or OEM-equivalent hi-flow unit)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Every system is decibel-tested and EC-approved for global application. \u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.\u003c\/p\u003e\n\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\n\u003cul class=\"fitment-list\"\u003e\n\u003cli\u003e2017-2023 Audi S5 Base\u003c\/li\u003e\n\u003cli\u003e2018-2023 Audi S5 Premium Plus\u003c\/li\u003e\n\u003cli\u003e2018-2023 Audi S5 Prestige\u003c\/li\u003e\n\u003cli\u003e2019-2023 Audi S5 Premium\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150600433950,"sku":"MILSSXAU681","price":4193.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXAU681_1.jpg?v=1791252979","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-resonated-cat-back-exhaust-for-audi-b9-s5-coupe-brushed-titanium-tips-ssxau681","provider":"Signature Autohaus","version":"1.0","type":"link"}