{"product_id":"bmw-x3m-x4m-downpipes-f97-f98-s58-3-0t-2019-2023-wstn-performance","title":"BMW X3M\/X4M Catless Downpipes 2019-2023 | WSTN Performance (S58 F97\/F98)","description":"\u003cdiv class=\"wstn-product\"\u003e\n\u003ch1\u003eThe S58 was built for this. Remove the restriction feel the difference.\u003c\/h1\u003e\n\u003cp\u003eThe BMW X3M and X4M carry one of the finest performance engines in recent memory the S58 inline-six. With 480hp (Competition: 510hp) from the factory, the platform is already exceptional. But the factory downpipes are engineered to a compliance standard, not a performance one. This WSTN Performance Catless Downpipe set replaces both factory units with straight-through stainless steel, eliminating the catalytic restriction at the source of the exhaust system. The result: sharpened turbo response, improved mid-range pull, and an exhaust note that reflects the engine's true character. Every set is built to order, quality checked in Perth, and dispatched worldwide.\u003c\/p\u003e\n\u003ch1\u003eWhy Upgrade?\u003c\/h1\u003e\n\u003cp\u003e✅ Straight-Through Design: Eliminates catalytic restriction at the turbo outlets the highest-impact point in the exhaust system for power and response.\u003c\/p\u003e\n\u003cp\u003e✅ Sharpened Spool: Reduced back pressure means the S58's twin turbos build boost faster. More response, less lag.\u003c\/p\u003e\n\u003cp\u003e✅ Stainless Steel Construction: Precision-welded for durability and consistent performance across all operating conditions.\u003c\/p\u003e\n\u003cp\u003e✅ Direct Bolt-On: Designed to replace factory downpipes at OEM flange points no cutting, no fabrication required.\u003c\/p\u003e\n\u003cp\u003e✅ Track and Competition Ready: Intended for track and competition use where emissions restrictions do not apply.\u003c\/p\u003e\n\u003ch1\u003eKey Features \u0026amp; Specs\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel corrosion resistant, built to last\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e Precision mandrel-bent, TIG-welded joints\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Catless straight-through maximum flow\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Stainless steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Dual downpipe set left and right\u003c\/p\u003e\n\u003ch1\u003eFitment \u0026amp; Compatibility\u003c\/h1\u003e\n\u003cp\u003e✔️ BMW X3M (F97) 2019–2023 (S58, 3.0T Inline-Six)\u003c\/p\u003e\n\u003cp\u003e✔️ BMW X3M Competition (F97) 2019–2023 (S58, 3.0T Inline-Six)\u003c\/p\u003e\n\u003cp\u003e✔️ BMW X4M (F98) 2019–2023 (S58, 3.0T Inline-Six)\u003c\/p\u003e\n\u003cp\u003e✔️ BMW X4M Competition (F98) 2019–2023 (S58, 3.0T Inline-Six)\u003c\/p\u003e\n\u003cp\u003eFits both standard and Competition variants. Direct bolt-on to factory turbo outlet flanges. No modification required.\u003c\/p\u003e\n\u003ch3\u003eTechnical Note\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEmissions:\u003c\/strong\u003e Catless straight-through intended for track and competition use. Buyer is responsible for local emissions compliance. Check applicable regulations before fitting to road-registered vehicles.\u003c\/p\u003e\n\u003ch1\u003eWhat's In the Box\u003c\/h1\u003e\n\u003cp\u003e1 x WSTN Performance Downpipe Set (Left + Right)\u003c\/p\u003e\n\u003ch1\u003eInstallation\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e 3\/5 Requires workshop lift and exhaust experience\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTime Estimate:\u003c\/strong\u003e 2–3 Hours\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Direct bolt-on to factory turbo outlet and mid-pipe flanges\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=\"\/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. Most of our products are built-to-order: hand-crafted to your engine code, personally quality-checked in Perth WA, and dispatched worldwide. In-stock items dispatch within 2–4 days. All items arrive with full tracking. \u003ca href=\"\/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=\"\/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\n\u003ch1\u003eSound Clip\u003c\/h1\u003e\n\u003c\/div\u003e","brand":"WSTN Performance","offers":[{"title":"Default Title","offer_id":50164320076022,"sku":"WSTN-BMW-F97-F98-DP","price":755.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/2955\/2886\/files\/imagecopy.jpg?v=1774782267","url":"https:\/\/wstnperformance.com.au\/products\/bmw-x3m-x4m-downpipes-f97-f98-s58-3-0t-2019-2023-wstn-performance","provider":"wstnperformance","version":"1.0","type":"link"}