{"product_id":"milltek-non-resonated-cat-back-exhaust-for-audi-b9-s4-s5-brushed-titanium-tips-ssxau652","title":"Milltek Non-Resonated Cat-Back Exhaust for Audi B9 S4 S5, Brushed Titanium Tips","description":"\u003cp\u003eThe Milltek Non-Resonated Cat-Back Exhaust System is engineered for Audi B9 S4 and S5 (non-Sport Differential models). This 2.50\" mandrel-bent T304L stainless steel system replaces the factory cat-back and delivers direct fitment using OEM hangers with no modification required.\u003c\/p\u003e\n\u003cp\u003eHand-finished T304L stainless construction with Quad GT-100 titanium trim tips. The non-resonated design eliminates the OE resonance chamber, sharpening throttle response and unleashing a more aggressive full-throttle character. 2.50\" (63.50mm) bore maintains scavenging efficiency across the rev range. Direct factory fitment ensures seamless integration with OEM mounting points and suspension geometry.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi S4 3.0 TFSI V6 B9 Saloon\/Sedan \u0026amp; Avant (non-Sport Diff models) - 2016 and later\u003c\/li\u003e\n\u003cli\u003eAudi S5 3.0 TFSI V6 Sportback B9 (non-Sport Diff models only) - 2017 and later\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Each system is hand-finished and tested to ensure the engineered tone character you expect from a Signature Series cat-back. \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\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":60150595584286,"sku":"MILSSXAU652","price":3948.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXAU652_1.jpg?v=1791252789","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-non-resonated-cat-back-exhaust-for-audi-b9-s4-s5-brushed-titanium-tips-ssxau652","provider":"Signature Autohaus","version":"1.0","type":"link"}