{"product_id":"milltek-resonated-cat-back-exhaust-audi-b9-s4-s5-polished-tips-ssxau640","title":"Resonated Cat-Back Exhaust | Audi B9 S4 S5 - Polished Tips | Milltek","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMilltek Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 (non-Sport Differential models). Direct factory fitment, 2.50\" (63.50mm) mandrel-bent T304L stainless steel construction with quad GT-100 polished tips. Engineered to deliver enhanced exhaust flow and an OE+ tone signature.\u003c\/p\u003e\n\u003cp\u003eHand-finished T304L stainless steel throughout, using OEM hangers and factory mounting points for drop-in installation. The resonated chamber design fine-tunes the resonance point for a sportier note without excessive interior drone. Dyno-proven gains in exhaust scavenging efficiency across the 3.0L turbo V6 powerband.\u003c\/p\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003ch3\u003eFitment Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi S4 B9 3.0 Turbo V6 Saloon\/Sedan \u0026amp; Avant (non-Sport Differential) 2016+\u003c\/li\u003e\n\u003cli\u003eAudi S5 B9 3.0 Turbo V6 Sportback (non-Sport Differential) 2017+\u003c\/li\u003e\n\u003c\/ul\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":68005543117102,"sku":"SSXAU640","price":3189.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/1719\/1726\/files\/SSXAU640_1.jpg?v=1794451863","url":"https:\/\/shopicwp.com\/products\/milltek-resonated-cat-back-exhaust-audi-b9-s4-s5-polished-tips-ssxau640","provider":"Inner Circle Wheels and Performance","version":"1.0","type":"link"}