{"product_id":"bmw-b48-catless-downpipe-2-3-4-series-z4-gr-supra","title":"BMW 320i\/330i\/420i\/430i\/220i\/230i\/Z4\/Toyota GR Supra 2.0 Catless Downpipe 2016-2024 (B48 F3X\/G2X) | WSTN Performance","description":"\u003ch1\u003eThe B48 breathes properly once the factory catalytic downpipe comes off.\u003c\/h1\u003e\n\u003cp\u003eThe B48 is BMW's 2.0 litre turbocharged four cylinder, and it runs right through the F and G series range, from the 220i and the 320i to the 430i, the Z4 and the Toyota GR Supra 2.0. From the factory the first section after the turbo carries a catalytic converter, and that section is the tightest point in the whole exhaust path before the gas ever reaches the mid pipe. This WSTN Performance catless downpipe replaces it with a straight through stainless steel assembly, shielded along the main run, with the flange and sensor connections kept where the car expects to find them.\u003c\/p\u003e\n\u003cp\u003eIt is a focused change at the turbo outlet, not a replacement rear exhaust. Everything behind the downpipe stays exactly as it is, which is what makes this the first step in a B48 exhaust build and the one that opens the most restricted section of the system.\u003c\/p\u003e\n\u003ch1\u003eWhy Upgrade?\u003c\/h1\u003e\n\u003cp\u003e✓ \u003cstrong\u003eA catless flow path:\u003c\/strong\u003e The catalytic element is gone, so the pipe runs straight through from the turbo outlet to the mid pipe connection. This is the direct, catalyst free configuration for a track or competition build.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eSharper response:\u003c\/strong\u003e The downpipe sits immediately behind the turbo, so opening up this section is felt in how quickly the B48 picks up and how freely it carries through the mid range.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eA harder note:\u003c\/strong\u003e Taking the catalytic section out of the pipe changes the character of the exhaust, giving the four cylinder a fuller tone that the factory downpipe absorbs before it leaves the engine bay.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eShielding over the hot section:\u003c\/strong\u003e Woven metallic shielding wraps the pipework along the hottest part of the run, while the flange faces and the outlet stay exposed for assembly.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eBraided flex section:\u003c\/strong\u003e A braided flex joint sits in the run, so the assembly moves with the engine and driveline instead of sitting rigid between two fixed points.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eFactory connection points:\u003c\/strong\u003e A flanged turbo side connection, a sensor port and a mounting bracket are part of the assembly, so it goes back where the original section came out.\u003c\/p\u003e\n\u003ch1\u003eKey Features \u0026amp; Specs\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Catless downpipe assembly\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e B48 2.0T four cylinder\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeat Shielding:\u003c\/strong\u003e Woven metallic shielding over the main pipework\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFlex Section:\u003c\/strong\u003e Braided flex joint in the pipe run\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnections:\u003c\/strong\u003e Flanged turbo side connection, sensor port and mounting bracket\u003c\/p\u003e\n\u003ch1\u003eFitment \u0026amp; Compatibility\u003c\/h1\u003e\n\u003cp\u003e✓ BMW 320i, 330i, 330e (F30) \/ 2016-2019 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 320i, 330i, 330e (F31) \/ 2016-2019 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 320i, 330i, 330e (F34) \/ 2016-2019 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 420i, 430i (F32) \/ 2016-2019 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 420i, 430i (F33) \/ 2016-2019 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 420i, 430i (F36) \/ 2016-2019 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 220i, 230i (F22) \/ 2016-2021 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 220i, 230i (F23) \/ 2016-2021 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 320i, 330i, 330e (G20) \/ 2019-2024 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 320i, 330i, 330e (G21) \/ 2019-2024 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 420i, 430i (G22) \/ 2020-2024 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 420i, 430i (G23) \/ 2021-2024 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 220i (G42) \/ 2021-2024 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW 230i (G42) \/ 2022-2024 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ BMW Z4 sDrive20i, sDrive30i (G29) \/ 2019-2024 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003e✓ Toyota GR Supra 2.0 (A90) \/ 2020-2024 \/ B48 2.0T\u003c\/p\u003e\n\u003cp\u003eThis listing covers the B48 2.0 litre petrol four. Check the engine code on your car before ordering.\u003c\/p\u003e\n\u003ch4\u003eCheck it fits your car\u003c\/h4\u003e\n\u003cp\u003eUse the fitment selector on this page to confirm your exact make, model, and year before ordering.\u003c\/p\u003e\n\u003cp\u003eSelect the option that matches your car. Not sure? Email us your VIN, make and model and we'll confirm fitment.\u003c\/p\u003e\n\u003ch1\u003eWhat's In the Box\u003c\/h1\u003e\n\u003cp\u003e✓ 1 x WSTN Performance BMW B48 catless downpipe with heat shielding\u003c\/p\u003e\n\u003ch1\u003eInstallation\u003c\/h1\u003e\n\u003cp\u003eProfessional fitting by a workshop with exhaust experience is recommended. The car needs to be raised for access to the turbo outlet, and the sensor connection should be transferred and seated before anything is finally tightened. Have the workshop check flange alignment, clearance around the shielded section and the mid pipe connection, then re check every joint once the car has been run up to temperature.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisclaimer:\u003c\/strong\u003e Intended for track and competition use only. Compliance with local emissions regulations is the buyer's responsibility.\u003c\/p\u003e\n\u003ch1\u003eWhy WSTN Performance?\u003c\/h1\u003e\n\u003cp\u003eWe double check every fitment before it ships, send through your model, year and VIN and we will tell you straight whether this part is right for it.\u003c\/p\u003e\n\u003ch1\u003eHeat Shielding\u003c\/h1\u003e\n\u003cp\u003e✓ \u003cstrong\u003eCooler engine bay:\u003c\/strong\u003e The shield blocks radiant heat coming off the pipe, so the bay around the downpipe runs cooler than it would with bare stainless.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eLess heat soak:\u003c\/strong\u003e Hoses, wiring, sensors and intake components sitting near the exhaust run take on less heat.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eEasier on heat-sensitive parts:\u003c\/strong\u003e Less constant heat exposure on nearby rubber and plastic parts, which helps them hold up over time.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eFactory approach:\u003c\/strong\u003e The same principle used on factory exhaust systems, a barrier between hot metal and the rest of the bay.\u003c\/p\u003e\n\u003cp\u003e✓ \u003cstrong\u003eHeat stays in the pipe:\u003c\/strong\u003e Keeping heat in the exhaust stream instead of radiating it out supports flow through the pipe.\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=\"\/pages\/warranty-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. Lead times are shown on the product page and every order is personally dispatched once complete. \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","brand":"WSTN Performance","offers":[{"title":"Non-OPF","offer_id":51707835941110,"sku":"WSTN-BMW-B48-CDP-NOPF","price":617.0,"currency_code":"USD","in_stock":true},{"title":"OPF","offer_id":51707835973878,"sku":"WSTN-BMW-B48-CDP-OPF","price":617.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/2955\/2886\/files\/WSTN-bmw-b48-catless-downpipe-003.jpg?v=1789899138","url":"https:\/\/wstnperformance.com\/products\/bmw-b48-catless-downpipe-2-3-4-series-z4-gr-supra","provider":"wstnperformance","version":"1.0","type":"link"}