{"product_id":"milltek-resonated-cat-back-exhaust-for-audi-b9-s4-s5-polished-tips-ssxau640","title":"Milltek Resonated Cat-Back Exhaust for Audi B9 S4 S5, Polished Tips","description":"\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\u003ch3\u003eFitment\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\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\n\u003cul class=\"fitment-list\"\u003e\n\u003cli\u003e2016 Audi S4 Base\u003c\/li\u003e\n\u003cli\u003e2016 Audi S4 Premium Plus\u003c\/li\u003e\n\u003cli\u003e2016 Audi S4 Prestige\u003c\/li\u003e\n\u003cli\u003e2017-2023 Audi S5 Base\u003c\/li\u003e\n\u003cli\u003e2018-2024 Audi S4 Base\u003c\/li\u003e\n\u003cli\u003e2018-2025 Audi S4 Premium Plus\u003c\/li\u003e\n\u003cli\u003e2018-2025 Audi S4 Prestige\u003c\/li\u003e\n\u003cli\u003e2018-2025 Audi S5 Premium Plus\u003c\/li\u003e\n\u003cli\u003e2018-2025 Audi S5 Prestige\u003c\/li\u003e\n\u003cli\u003e2019-2025 Audi S4 Premium\u003c\/li\u003e\n\u003cli\u003e2019-2025 Audi S5 Premium\u003c\/li\u003e\n\u003cli\u003e2026 Audi S4 Base\u003c\/li\u003e\n\u003cli\u003e2026 Audi S5 Base\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150586867998,"sku":"MILSSXAU640","price":3752.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXAU640_1.jpg?v=1791252692","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-resonated-cat-back-exhaust-for-audi-b9-s4-s5-polished-tips-ssxau640","provider":"Signature Autohaus","version":"1.0","type":"link"}