{"product_id":"bmw-m550i-m550i-xdrive-downpipes-g30-n63-4-4tt-wstn-performance","title":"BMW M550i\/M550i xDrive Catless Downpipes 2017-2023 (N63 G30) | WSTN Performance","description":"\u003cdiv class=\"wstn-product\"\u003e\n  \u003ch1\u003eUnleash the N63. Hear the V8.\u003c\/h1\u003e\n  \u003cp\u003eThe BMW M550i is already a weapon 523hp from a 4.4L twin-turbo V8 that sounds extraordinary in stock form. The factory downpipes choke what the N63 is truly capable of. WSTN Performance replaces both factory units with free-flowing 304 Stainless Steel stainless straight pipes, eliminating the restrictive catalytic converters that cap sound and limit power potential. The result is a deeper, more aggressive exhaust note from idle through to redline, and the breathing room for your tune to properly unlock what this engine was built to deliver.\u003c\/p\u003e\n\n  \u003ch1\u003eWhy Upgrade?\u003c\/h1\u003e\n  \u003cp\u003e✅ Deeper, more aggressive exhaust note from the N63 V8 from idle to full throttle\u003c\/p\u003e\n  \u003cp\u003e✅ Remove both factory catalytic restrictions that cap sound and limit power ceiling\u003c\/p\u003e\n  \u003cp\u003e✅ Paired with an ECU tune, unlocks significant power gains from both turbos\u003c\/p\u003e\n  \u003cp\u003e✅ 304 Stainless Steel stainless construction built for heat, built to last\u003c\/p\u003e\n  \u003cp\u003e✅ 1.5mm wall thickness OEM spec dimensions, zero restriction\u003c\/p\u003e\n  \u003cp\u003e✅ Hand TIG welded to withstand sustained boost pressure and high exhaust temperatures\u003c\/p\u003e\n\n  \u003ch1\u003eKey Features \u0026amp; Specs\u003c\/h1\u003e\n  \u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel Stainless Steel\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWall Thickness:\u003c\/strong\u003e 1.5mm\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWelding:\u003c\/strong\u003e High-temperature TIG welding\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Brushed stainless\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Catless (straight pipe \/ de-cat)\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eSet Includes:\u003c\/strong\u003e Both left and right downpipes complete set\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 3 years manufacturer's warranty\u003c\/p\u003e\n\n  \u003ch1\u003eFitment \u0026amp; Compatibility\u003c\/h1\u003e\n  \u003cp\u003e✔️ BMW M550i G30 2017–2023 (N63 4.4L Twin-Turbo V8)\u003c\/p\u003e\n  \u003cp\u003e✔️ BMW M550i xDrive G30 2017–2023 (N63 4.4L Twin-Turbo V8)\u003c\/p\u003e\n\n  \u003ch3\u003eTechnical Note\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eCatless Configuration:\u003c\/strong\u003e These are straight-pipe (de-cat) downpipes. They will trigger a CEL (check engine light) on untuned vehicles an ECU tune is strongly recommended alongside this upgrade.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eProfessional Installation Recommended:\u003c\/strong\u003e The N63 V8 configuration requires underside access. A qualified workshop with a 4-post hoist is recommended.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eConfirm Your Spec:\u003c\/strong\u003e Designed for the standard G30 N63 configuration. Confirm your vehicle build before ordering if you have any dealer-fitted modifications.\u003c\/p\u003e\n\n  \u003ch1\u003eWhat's In the Box\u003c\/h1\u003e\n  \u003cp\u003eLeft downpipe (driver's side) × 1\u003c\/p\u003e\n  \u003cp\u003eRight downpipe (passenger's side) × 1\u003c\/p\u003e\n  \u003cp\u003eFitment hardware included\u003c\/p\u003e\n\n  \u003ch1\u003eInstallation\u003c\/h1\u003e\n  \u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e 3\/5\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 replacement (OEM flange fitment)\u003c\/p\u003e\n\n\n  \u003ch1\u003eWarranty \/ Shipping\u003c\/h1\u003e\n\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\n  \u003ch3\u003eWARRANTY\u003c\/h3\u003e\n  \u003cp\u003eWe stand behind every product we curate. All parts feature a minimum one-year manufacturer's 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\n  \u003ch3\u003eSHIPPING\u003c\/h3\u003e\n  \u003cp\u003eWe offer tracked worldwide shipping on our entire catalogue. Products marked as “Built to Order” are handmade in 3–5 weeks (check the product page as lead times may vary), 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\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\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\u003e\n  Email: \u003ca href=\"mailto:contact@wstnperformance.com\"\u003econtact@wstnperformance.com\u003c\/a\u003e\u003c\/p\u003e\n\n  \u003ch1\u003eSound Clip\u003c\/h1\u003e\n\n\u003c\/div\u003e","brand":"WSTN Performance","offers":[{"title":"Default Title","offer_id":50146001322230,"sku":"WSTN-BMW-G30-DP","price":691.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/2955\/2886\/files\/WSTN-bmw-m550i-n63-g30-001.jpg?v=1780027483","url":"https:\/\/wstnperformance.com.au\/ms-sg\/products\/bmw-m550i-m550i-xdrive-downpipes-g30-n63-4-4tt-wstn-performance","provider":"wstnperformance","version":"1.0","type":"link"}