{"product_id":"exhaust-catted-downpipe-for-b9-s4-s5-3-0t-ea839-2019","title":"VCTR Performance Audi S4\/S5 B9 Catted Downpipe Kit","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThe B9 S4\/S5's factory downpipe carries an OPF that is the primary restriction in the post-turbo exhaust path. This high-flow catted downpipe replaces the OPF with a less restrictive catalyst — improving exhaust flow and turbo response while maintaining catalytic function for road use.\u003c\/p\u003e\u003ch3\u003eWhy Upgrade?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHigh-flow catalyst significantly less restrictive than the factory pre-cat or OPF\u003c\/li\u003e\n\u003cli\u003eImproved exhaust flow and turbo response versus the OEM downpipe\u003c\/li\u003e\n\u003cli\u003eRetains catalytic converter — better suited to road-registered vehicles\u003c\/li\u003e\n\u003cli\u003eStainless steel construction for durability\u003c\/li\u003e\n\u003cli\u003eMore defined exhaust tone on tuned applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEngineering Focus\u003c\/h3\u003e\u003cp\u003eSS304 stainless steel with a high-flow catalyst. The OPF is replaced by a less restrictive unit — an improvement over the factory downpipe that retains catalytic function.\u003c\/p\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eCompatible with:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAudi S4 B9 3.0T EA839 (2019+)\u003c\/li\u003e\n\u003cli\u003eAudi S5 B9 3.0T EA839 (2019+)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eTuning is recommended to fully benefit from the improved exhaust path.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHigh-flow catted downpipe assembly\u003c\/li\u003e\n\u003cli\u003eSupplied gaskets and installation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMaterial: SS304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eCatalyst: High-flow OPF replacement\u003c\/li\u003e\n\u003cli\u003eEngine: EA839 3.0T\u003c\/li\u003e\n\u003cli\u003eFitment: OEM flange replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDelivery \u0026amp; Support\u003c\/h3\u003e\u003cp\u003eYour order is carefully inspected before dispatch and backed by VCTR Performance support. For product availability, shipping estimates or fitment assistance, contact our team.\u003c\/p\u003e","brand":"VCTR Performance","offers":[{"title":"VCTR Performance \/ VCTR Performance","offer_id":52080752886080,"sku":"100007928:-6#silver;191284006:-1#Catted","price":1199.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0985\/1152\/0064\/files\/ChatGPTImageMay25_2026_09_44_48PM.png?v=1779709714","url":"https:\/\/shop.vctrperformance.com\/products\/exhaust-catted-downpipe-for-b9-s4-s5-3-0t-ea839-2019","provider":"VCTR","version":"1.0","type":"link"}