{"product_id":"audi-s4-s5-b9-catless-dp","title":"Audi S4 \/ S5 B9 Catless Downpipe | EA839 3.0T V6","description":"\u003ch1\u003eThe EA839 is one of the best inline-six architectures Audi has made. A restrictive stock downpipe is a strange way to celebrate it.\u003c\/h1\u003e\n\u003cp\u003eWSTN Performance catless downpipe for the Audi S4 and S5 B9. Perth quality-checked and dispatched worldwide.\u003c\/p\u003e\n\u003ch1\u003eWhy Upgrade?\u003c\/h1\u003e\n\u003cp\u003e✓ \u003cstrong\u003eEA839 Unleashed:\u003c\/strong\u003e Removes the restrictive factory catalytic converter to maximise flow through the EA839 3.0T V6. Gains are felt from low in the rev range, not just at peak.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eImproved Turbo Response:\u003c\/strong\u003e With the restriction gone, turbo spool improves — response sharpens and power comes on earlier.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eT304 Stainless Construction:\u003c\/strong\u003e Corrosion-resistant T304 stainless steel built for sustained heat load of the EA839's twin-scroll turbo.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eHand Built to Order:\u003c\/strong\u003e Built to your order and quality checked in Perth WA before dispatch. Not pulled from shelf stock.\u003c\/p\u003e\n\u003ch1\u003eKey Features \u0026amp; Specs\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e T304 stainless steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e TIG-welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCatalyst:\u003c\/strong\u003e None (catless — track\/competition use)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Natural brushed stainless\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBranding:\u003c\/strong\u003e WSTN Performance logo\u003c\/p\u003e\n\u003ch1\u003eFitment \u0026amp; Compatibility\u003c\/h1\u003e\n\u003cp\u003e✓ Audi S4 \/ S5 (B9) \/ 2017–2023 \/ EA839 3.0T V6\u003c\/p\u003e\n\u003ch4\u003eConfirm fitment before purchase\u003c\/h4\u003e\n\u003cp\u003eAdd your make, model, year, and VIN in the cart notes at checkout so we can match against our compatibility database before dispatch. Wrong fitment costs everyone time we'd rather not waste.\u003c\/p\u003e\n\u003ch1\u003eWhat's In the Box\u003c\/h1\u003e\n\u003cp\u003e✓ 1 x WSTN Performance Audi S4\/S5 B9 Catless Downpipe with WSTN Performance logo\u003c\/p\u003e\n\u003ch1\u003eInstallation\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e 4 of 5 — Turbo downpipe replacement, specialist installation required\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTime:\u003c\/strong\u003e 3 to 5 Hours\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e OEM flange replacement at turbo outlet\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Note:\u003c\/strong\u003e Catless unit removes factory catalytic converter. Track and competition use only. Compliance with local emissions regulations is the buyer's responsibility.\u003c\/p\u003e\n\u003ch4\u003eConfirm fitment before purchase\u003c\/h4\u003e\n\u003cp\u003eAdd your make, model, year, and VIN in the cart notes at checkout so we can match against our compatibility database before dispatch. Wrong fitment costs everyone time we'd rather not waste.\u003c\/p\u003e\n\u003ch1\u003eWarranty \/ Shipping\u003c\/h1\u003e\n\u003ch3\u003eDISCLAIMER\u003c\/h3\u003e\n\u003cp\u003eWSTN Performance components are designed for track and competition use. To protect your build and ensure a perfect finish, we recommend professional installation by a certified specialist\/workshop. It is the buyer's responsibility to ensure modifications comply with local regulations.\u003c\/p\u003e\n\u003ch3\u003eWARRANTY\u003c\/h3\u003e\n\u003cp\u003eWe stand behind every product we sell. All WSTN Performance products carry a 1 year WSTN Performance warranty as standard. This covers any manufacturing defects, giving you total peace of mind that your upgrade is built to last. \u003ca href=\"\/ms-sg\/policies\/refund-policy\"\u003eView our full Warranty policy page here.\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eSHIPPING\u003c\/h3\u003e\n\u003cp\u003eWe offer tracked worldwide shipping on our entire catalogue. Products marked as \"Built to Order\" are completed in 3-5 weeks (check the product page as lead times may vary) and personally dispatched from our Perth WA facility. \u003ca href=\"\/ms-sg\/policies\/shipping-policy\"\u003eView our full Shipping policy page here.\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eRETURNS\u003c\/h3\u003e\n\u003cp\u003eWe offer returns on all products if items are damaged or there is something wrong. If we ever make a mistake, we'll cover the return shipping to make it right. \u003ca href=\"\/ms-sg\/policies\/refund-policy\"\u003eView our full Return policy page here.\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eSUPPORT\u003c\/h3\u003e\n\u003cp\u003eNeed a hand with fitment, shipping, or a return? Our Perth-based team is here to help you get your build perfect.\u003cbr\u003eEmail: \u003ca href=\"mailto:contact@wstnperformance.com\"\u003econtact@wstnperformance.com\u003c\/a\u003e\u003c\/p\u003e","brand":"WSTN Performance","offers":[{"title":"Default Title","offer_id":50891420958966,"sku":"WSTN-AUDI-S4B9-DP","price":638.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/2955\/2886\/files\/WSTN-audi-s4-s5-b9-catless-dp-003.jpg?v=1781780237","url":"https:\/\/wstnperformance.com.au\/ms-sg\/products\/audi-s4-s5-b9-catless-dp","provider":"wstnperformance","version":"1.0","type":"link"}