{"product_id":"bmw-m5-m6-downpipes-f10-f12-f13-s63-4-4tt-wstn-performance","title":"BMW M5\/M6 Catless Downpipes 2012-2016 (S63 F10) | WSTN Performance","description":"\u003cdiv class=\"wstn-product\"\u003e\n\u003ch1\u003eUncage the S63. Straight-Through Downpipes for the BMW M5 and M6.\u003c\/h1\u003e\n\u003cp\u003eThe S63 is one of BMW's most celebrated engines a 4.4-litre twin-turbo V8 that produces extraordinary power in stock form. But the factory exhaust system holds it back. These WSTN Performance downpipes strip away the restrictive catalytic converters and let the engine breathe, delivering a deeper, more aggressive exhaust note alongside measurable gains in throttle response and mid-range pull. Built from 304 Stainless Steel stainless with precision TIG-welded construction, they bolt directly to factory manifold flanges no modifications, no adapters, no compromises. Every set is personally quality checked in Perth before dispatch worldwide. If you know what an S63 sounds like without restriction, you already know what these will do.\u003c\/p\u003e\n\u003ch1\u003eWhy Upgrade?\u003c\/h1\u003e\n\u003cp\u003e✅ Raw S63 Sound: Strip away the factory restriction and unlock the full acoustic character of the twin-turbo V8 from idle to full pull.\u003c\/p\u003e\n\u003cp\u003e✅ Performance Gains: Reduced backpressure improves turbo spool and throttle response throughout the entire rev range.\u003c\/p\u003e\n\u003cp\u003e✅ Direct Bolt-On: Engineered to OEM manifold flange dimensions no cutting, no welding, no modifications required.\u003c\/p\u003e\n\u003cp\u003e✅ Zero Compromise Construction: 304 Stainless Steel stainless, mandrel-bent, TIG-welded built to match the demands of the S63.\u003c\/p\u003e\n\u003ch1\u003eKey Features \u0026amp; Specs\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel 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\u003eDesign:\u003c\/strong\u003e Free-flowing straight-through eliminates factory catalytic restriction for maximum exhaust flow\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Natural brushed 304 stainless\u003c\/p\u003e\n\u003ch1\u003eFitment \u0026amp; Compatibility\u003c\/h1\u003e\n\u003cp\u003e✔️ BMW M5 (F10) 2012–2016 (S63B44B 4.4L Twin-Turbo V8)\u003c\/p\u003e\n\u003cp\u003e✔️ BMW M6 Coupé (F12) 2012–2016 (S63B44B 4.4L Twin-Turbo V8)\u003c\/p\u003e\n\u003cp\u003e✔️ BMW M6 Gran Coupé (F13) 2012–2016 (S63B44B 4.4L Twin-Turbo V8)\u003c\/p\u003e\n\u003cp\u003eDirect OEM-spec fitment. Bolts to factory exhaust manifold 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 design intended for track and competition use. Buyer responsible for ensuring compliance with local regulations.\u003c\/p\u003e\n\u003ch1\u003eWhat's In the Box\u003c\/h1\u003e\n\u003cp\u003e1 x WSTN Performance BMW M5\/M6 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 exhaust manifold 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=\"\/en-gb\/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=\"\/en-gb\/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=\"\/en-gb\/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":50149932105974,"sku":"WSTN-BMW-F10-F12-F13-DP","price":391.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/2955\/2886\/files\/hf_20260328_141657_a1dd115e-fc40-4c10-8ecc-924f554e03d0.png?v=1774709189","url":"https:\/\/wstnperformance.com.au\/en-gb\/products\/bmw-m5-m6-downpipes-f10-f12-f13-s63-4-4tt-wstn-performance","provider":"wstnperformance","version":"1.0","type":"link"}