{"product_id":"milltek-non-resonated-cat-back-for-audi-b9-s5-sportback-polished-tips-ssxau1113","title":"Milltek Non-Resonated Cat-Back for Audi B9 S5 Sportback, Polished Tips","description":"\u003cp\u003eDirect factory fitment non-resonated cat-back exhaust for Audi B9 S5 Sportback with Sports Differential and Factory Brace Bars. Hand-finished T304L stainless steel system engineered to deliver maximum sound character and performance gains on closed-course and track applications.\u003c\/p\u003e\n\u003cp\u003eMandrel-bent 2.5\" diameter piping with CNC-formed quad polished tips (4\" GT-100 round or quad oval available in polished stainless or Cerakote Black finish). Direct bolt-on replacement using OEM hangers and mounting points-no modification required. Non-resonated design eliminates mid-range drone characteristic of resonated systems, delivering full-throttle engagement across the entire powerband.\u003c\/p\u003e\n\u003ch3\u003eFitment \u0026amp; Configuration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi B9 S5 Sportback (2019+) with Sports Differential and Factory Brace Bars\u003c\/li\u003e\n\u003cli\u003eCat-back system: factory cat retention, OEM+ fitment\u003c\/li\u003e\n\u003cli\u003eTip options: GT-100 round (4\" diameter) or quad oval polished stainless\/Cerakote Black\u003c\/li\u003e\n\u003cli\u003eHand-finished and decibel-tested for engineered tone character\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\u003e2017-2023 Audi S5 Base\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 S5 Premium\u003c\/li\u003e\n\u003cli\u003e2026 Audi S5 Base\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150502129950,"sku":"MILSSXAU1113","price":3507.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/ssxau1113.jpg?v=1791250677","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-non-resonated-cat-back-for-audi-b9-s5-sportback-polished-tips-ssxau1113","provider":"Signature Autohaus","version":"1.0","type":"link"}