{"product_id":"milltek-resonated-cat-back-exhaust-audi-b9-s4-s5-burnt-titanium-tips-ssxau647","title":"Resonated Cat-Back Exhaust | Audi B9 S4 S5 - Burnt Titanium Tips | Milltek","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Milltek Resonated Cat-Back Exhaust System is a direct factory replacement for the Audi B9 S4 and S5, engineered to enhance exhaust flow and refine the OE+ sound character without aggressive resonance. This system uses 2.50\" (63.50mm) mandrel-bent T304L stainless steel throughout, hand-finished for durability and corrosion resistance.\u003c\/p\u003e\n\u003cp\u003eInstallation requires no modification - the system uses OEM hangers and integrates seamlessly with factory components. The resonated design tuned to eliminate drone at cruising speeds while delivering a more pronounced full-throttle note. Quad GT-90 burnt titanium trims are included as standard.\u003c\/p\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003ch3\u003eFitment Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi S4 3.0 Turbo V6 B9 Saloon\/Sedan \u0026amp; Avant (non-sport differential models) 2016+\u003c\/li\u003e\n\u003cli\u003eAudi S5 3.0 Turbo V6 B9 Sportback (non-sport differential models) 2017+\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Engineered in-house and tested to deliver measurable flow improvements and refined acoustic character. \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":68005543379246,"sku":"SSXAU647","price":3960.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/1719\/1726\/files\/SSXAU647_1.jpg?v=1794451868","url":"https:\/\/shopicwp.com\/products\/milltek-resonated-cat-back-exhaust-audi-b9-s4-s5-burnt-titanium-tips-ssxau647","provider":"Inner Circle Wheels and Performance","version":"1.0","type":"link"}