{"product_id":"milltek-resonated-cat-back-exhaust-audi-b9-s4-s5-cerakote-black-tips-ssxau695","title":"Resonated Cat-Back Exhaust | Audi B9 S4 S5 - Cerakote Black Tips | Milltek","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eDirect factory-fit resonated cat-back exhaust system for Audi B9 S4 and S5 3.0 TFSI V6 Turbo models. Engineered as a T304L stainless steel replacement, this system delivers OEM+ sound character and measurable exhaust flow improvement without modification to mounting points or brake components.\u003c\/p\u003e\n\u003cp\u003eT304L stainless steel construction throughout, mandrel-bent and CNC-formed for precision fitment. 2.50\" (63.5mm) bore diameter with resonated chamber tuning to eliminate drone while preserving full-throttle character. Quad GT-100 Cerakote trim outlets with polished finish. Uses factory hangers and OEM valve integration-direct bolt-on installation.\u003c\/p\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003ch3\u003eFitment Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi S4 B9 Saloon\/Sedan (2016+) - Sport Differential models only, without brace bars\u003c\/li\u003e\n\u003cli\u003eAudi S5 B9 Sportback (2017+) - Sport Differential models only, without brace bars\u003c\/li\u003e\n\u003cli\u003eEngine: 3.0 TFSI V6 Turbo (EA839)\u003c\/li\u003e\n\u003cli\u003eNon-resonated variants available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Milltek resonated systems are engineered to fine-tune OEM resonance points, delivering a controlled, refined tone that suits both daily driving and spirited use. \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\u003ch2\u003eFitment\u003c\/h2\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":68005546885422,"sku":"SSXAU695","price":3189.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/1719\/1726\/files\/SSXAU695_1.jpg?v=1794451920","url":"https:\/\/shopicwp.com\/products\/milltek-resonated-cat-back-exhaust-audi-b9-s4-s5-cerakote-black-tips-ssxau695","provider":"Inner Circle Wheels and Performance","version":"1.0","type":"link"}