{"product_id":"milltek-non-resonated-cat-back-exhaust-for-audi-b6-a4-1-8t-quattro-90mm-gt-tips-ssxau511-ssxau511","title":"Milltek Non-Resonated Cat-Back Exhaust for Audi B6 A4 1.8T Quattro, 90mm GT Tips (SSXAU511)","description":"\u003cp\u003eMilltek Non-Resonated Cat-Back Exhaust System for Audi B6 A4 1.8T Quattro - direct factory fitment, hand-finished T304L stainless steel construction with 2.50\" mandrel-bent piping and 90mm GT90 polished trim tips. Replaces the factory cat-back system with no modification required.\u003c\/p\u003e\n\u003cp\u003eThe non-resonated design eliminates the OEM resonance chamber, delivering a more aggressive exhaust note at full throttle while maintaining OEM hanger compatibility. T304L stainless steel resists corrosion and thermal cycling; all seams are TIG-welded and hand-finished to Milltek's specification. Engineered for direct bolt-on installation using existing OEM hangers and mounting points.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi A4 Cabriolet B6 1.8T Quattro (2003-2005)\u003c\/li\u003e\n\u003cli\u003eCat-back system (replaces from rear silencer back; retains factory downpipe and secondary catalytic converter)\u003c\/li\u003e\n\u003cli\u003eUses OEM hangers and mounting brackets\u003c\/li\u003e\n\u003cli\u003e90mm GT90 polished stainless steel tip included\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\u003e2001-2005 Audi A4 Base\u003c\/li\u003e\n\u003cli\u003e2003-2005 Audi A4 Cabriolet\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150541287710,"sku":"MILSSXAU511","price":1719.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXAU511_1.jpg?v=1791252096","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-non-resonated-cat-back-exhaust-for-audi-b6-a4-1-8t-quattro-90mm-gt-tips-ssxau511-ssxau511","provider":"Signature Autohaus","version":"1.0","type":"link"}