{"product_id":"milltek-hjs-ece-downpipe-for-audi-s4-3-0-turbo-v6-b9-left-hand-drive-cars-only-ssxau725","title":"Milltek HJS ECE Downpipe for Audi S4 3.0 Turbo V6 B9, Left Hand Drive Cars Only","description":"\u003cp\u003eECE-approved high-flow sports cat downpipe engineered for full European road legality (R103 compliant) without requiring ECU software modification or triggering diagnostic codes. 200–300 cell construction delivers measurable flow gains while maintaining OE compatibility.\u003c\/p\u003e\u003cp\u003eHand-finished T304L stainless steel construction. Direct fitment with OEM hangers. Compatible with both OE cat-back systems and Milltek cat-back exhausts. EC Type Approved for immediate EU registration compliance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eECE R103 compliant — no check engine light\u003c\/li\u003e\n\u003cli\u003e200–300 cell high-flow design\u003c\/li\u003e\n\u003cli\u003eT304L stainless steel, mandrel-bent internals\u003c\/li\u003e\n\u003cli\u003eWorks with OE or Milltek cat-back systems\u003c\/li\u003e\n\u003cli\u003eNo ECU tuning required\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eEngineered to deliver real performance gains without compromise on emissions compliance or installation complexity. Precision-engineered for enthusiasts who demand both dyno results and road legality.\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\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\u003e2019-2025 Audi S4 Premium\u003c\/li\u003e\n\u003cli\u003e2026 Audi S4 Base\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150609772830,"sku":"MILSSXAU725","price":5244.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXAU725_1.jpg?v=1791253320","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-hjs-ece-downpipe-for-audi-s4-3-0-turbo-v6-b9-left-hand-drive-cars-only-ssxau725","provider":"Signature Autohaus","version":"1.0","type":"link"}