{"product_id":"milltek-non-resonated-cat-back-exhaust-for-audi-b9-s5-coupe-burnt-titanium-tips-ssxau688","title":"Milltek Non-Resonated Cat-Back Exhaust for Audi B9 S5 Coupe, Burnt Titanium Tips","description":"\u003cp\u003eThe Milltek Non-Resonated Cat-Back Exhaust System is engineered for the Audi B9 S5 3.0 V6 Turbo Coupe and Cabriolet (Non-Sport Diff models only). This direct factory fitment system replaces the OEM cat-back section, delivering enhanced exhaust flow and aggressive sound character without modification.\u003c\/p\u003e\n\u003cp\u003eConstructed from T304L stainless steel and hand-finished, the system features a 2.50\" (63.50mm) mandrel-bent pipe diameter for optimized scavenging. The non-resonated design eliminates the factory resonance chamber, producing a more pronounced full-throttle note while maintaining street-legal operation. Quad GT-100 Burnt Titanium trims provide premium aesthetics and heat resistance. Uses OEM hangers and mounting points for seamless installation.\u003c\/p\u003e\n\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDirect fit: Audi B9 S5 3.0 TFSI V6 Turbo Coupe (2016-2023)\u003c\/li\u003e\n\u003cli\u003eDirect fit: Audi B9 S5 3.0 TFSI V6 Turbo Cabriolet (2016-2023)\u003c\/li\u003e\n\u003cli\u003eNon-Sport Differential models only - verify before purchase\u003c\/li\u003e\n\u003cli\u003eNo OEM hangers or brackets require modification\u003c\/li\u003e\n\u003cli\u003eCat-back only - factory downpipe and secondary catalytic converters remain in place\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Hand-finished T304L construction, dyno-proven sound character, and OEM+ fitment define the Milltek standard. \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":60150601351454,"sku":"MILSSXAU688","price":4405.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXAU688_1.jpg?v=1791253036","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-non-resonated-cat-back-exhaust-for-audi-b9-s5-coupe-burnt-titanium-tips-ssxau688","provider":"Signature Autohaus","version":"1.0","type":"link"}