{"product_id":"milltek-large-bore-downpipe-race-cat-for-vw-golf-mk8-r-audi-s3-8y-ssxvw674","title":"Milltek Large Bore Downpipe Race Cat for VW Golf MK8 R \/ Audi S3 8Y","description":"\u003cp\u003eThe Milltek Large Bore Downpipe and Hi-Flow Sports Cat is a turbo-back component engineered for VW Golf MK8 R and Audi S3 8Y models. Direct factory fitment with OEM hangers; works seamlessly with both OE and Milltek Cat-Back systems. Material: T304L stainless steel, mandrel-bent 3\" (76.2 mm) bore with high-flow catalyst rated 200 CPSI. Stage 2 ECU software required for optimal results.\u003c\/p\u003e\n\u003cp\u003eHand-finished construction ensures superior durability and longevity. The high-flow sports catalytic converter maintains emissions compliance while optimizing exhaust scavenging for measurable gains in horsepower and torque across the power band. CNC-formed junctions and precision welding minimize turbulence and flow losses.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVW Golf MK8 R (all years)\u003c\/li\u003e\n\u003cli\u003eAudi S3 8Y (all years)\u003c\/li\u003e\n\u003cli\u003eCompatible with OEM cat-back or Milltek Signature Series cat-back\u003c\/li\u003e\n\u003cli\u003eNo modification required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Every downpipe is dyno-tested and EC Approved for real-world performance gains, not marketing promises. \u003c\/p\u003e\n\u003cp\u003eFits Milltek 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\u003e2022-2025 Audi S3 Premium\u003c\/li\u003e\n\u003cli\u003e2022-2025 Audi S3 Premium Plus\u003c\/li\u003e\n\u003cli\u003e2022-2025 Audi S3 Prestige\u003c\/li\u003e\n\u003cli\u003e2022-2026 Volkswagen Golf R Base\u003c\/li\u003e\n\u003cli\u003e2023 Volkswagen Golf R 20th Anniversary Edition\u003c\/li\u003e\n\u003cli\u003e2025 Volkswagen Golf R Black Edition\u003c\/li\u003e\n\u003cli\u003e2026 Audi S3 Base\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60151579410718,"sku":"MILSSXVW674","price":1342.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXVW674_1.jpg?v=1791264156","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-large-bore-downpipe-race-cat-for-vw-golf-mk8-r-audi-s3-8y-ssxvw674","provider":"Signature Autohaus","version":"1.0","type":"link"}