{"product_id":"b58-4-5-catless-downpipe-bmw-m240i-m340i-440i-540i-supra-a90-2016-2024","title":"BMW B58 4.5 Inch Catless Downpipe - M240i M340i 440i 540i 840i \/ Toyota Supra A90 2016-2024 - OneFastShop","description":"\u003cp\u003eTake the restriction out of your \u003cstrong\u003eB58\u003c\/strong\u003e with the OneFastShop 4.5 inch catless downpipe. The factory catalytic converter is the largest restriction in the exhaust - removing it frees up real power, spools the turbo sooner, and opens up the deep, aggressive growl the B58 was built to make. Fits a wide range of F chassis and G chassis B58 BMWs plus the Toyota GR Supra A90 from 2016 to 2024.\u003c\/p\u003e\n\u003cp\u003eExpect \u003cstrong\u003e+30 to +40 horsepower with a supporting tune\u003c\/strong\u003e (more on upgraded turbos), faster spool, and sharper throttle response. It's a direct bolt-on with no cutting required, works with OEM and aftermarket cat-back exhausts, and is backed by a lifetime warranty on defects.\u003c\/p\u003e\n\u003ch2 style=\"margin:16px 0 4px 0;\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin-top:0;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;font-weight:600;width:38%;\"\u003eDiameter\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;\"\u003e4.5 inch (full diameter from turbo outlet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;font-weight:600;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;\"\u003e304 grade stainless steel, mandrel bent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;font-weight:600;\"\u003eFlanges\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;\"\u003eCNC machined billet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;font-weight:600;\"\u003eWelding\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;\"\u003eHand TIG welded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;font-weight:600;\"\u003eFlex section\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;\"\u003eIntegrated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;font-weight:600;\"\u003eMounting\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;\"\u003eWelded bracket included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;font-weight:600;\"\u003eConfiguration\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border-bottom:1px solid #e5e5e5;\"\u003eCatless (race), catalytic converter removed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;font-weight:600;\"\u003eEngine\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;\"\u003eBMW B58 (F chassis, G chassis) and Toyota B58 (Supra A90)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"margin:16px 0 4px 0;\"\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul style=\"margin-top:0;\"\u003e\n\u003cli\u003e1x B58 4.5 inch catless downpipe\u003c\/li\u003e\n\u003cli\u003eWelded mounting bracket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"margin:16px 0 4px 0;\"\u003eInstallation \u0026amp; Tuning Notes\u003c\/h2\u003e\n\u003cp style=\"margin-top:0;\"\u003e\u003cstrong\u003eGasket required:\u003c\/strong\u003e A turbo-to-downpipe gasket is required to seal the downpipe to your factory turbo. Our \u003ca href=\"\/products\/bmw-turbo-downpipe-gasket-4-5-b58-supra-18328612538\"\u003e4.5 Inch Turbo to Downpipe Gasket for BMW B58 and Toyota Supra\u003c\/a\u003e is sold separately - add one to your order.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTuning \u0026amp; check engine light:\u003c\/strong\u003e Removing the cat means the rear O2 sensor will eventually set a check engine light (a catalyst efficiency code such as P0420) on an otherwise stock car. This is normal for any catless downpipe and not a fault with the part. To run it correctly and keep the light off, the car should be tuned with the rear O2 sensor turned off - any major B58 tuning platform supports this. We strongly recommend installing this downpipe with a supporting tune rather than on a stock vehicle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOff-road use:\u003c\/strong\u003e Intended for off-road and track use only. Not legal for use on public roads and may not comply with emissions regulations. Check local laws before installation.\u003c\/p\u003e\n\u003ch2 style=\"margin:16px 0 4px 0;\"\u003eFitment\u003c\/h2\u003e\n\u003ctable border=\"1\" style=\"margin-top:0;\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"200\"\u003eSubmodel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"100\"\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2021\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e1 Series\u003c\/td\u003e\n\u003ctd\u003eM140i (F20\/F21)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2021\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e2 Series\u003c\/td\u003e\n\u003ctd\u003eM240i \/ M240i xDrive (F22\/F23)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2018\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e3 Series\u003c\/td\u003e\n\u003ctd\u003e340i \/ 340i xDrive (F30\/F31)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e3 Series\u003c\/td\u003e\n\u003ctd\u003eM340i \/ M340i xDrive (G20\/G21)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2020\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e4 Series\u003c\/td\u003e\n\u003ctd\u003e440i \/ 440i xDrive (F32\/F33\/F36)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2024\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e4 Series\u003c\/td\u003e\n\u003ctd\u003eM440i \/ M440i xDrive \/ Gran Coupe (G22\/G23\/G26)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2023\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e5 Series\u003c\/td\u003e\n\u003ctd\u003e540i \/ 540i xDrive (G30)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2022\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e7 Series\u003c\/td\u003e\n\u003ctd\u003e740i \/ 740Li \/ xDrive (G11\/G12)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2024\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e8 Series\u003c\/td\u003e\n\u003ctd\u003e840i \/ xDrive \/ Gran Coupe (G14\/G15\/G16)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2024\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX3\u003c\/td\u003e\n\u003ctd\u003eM40i (G01)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2024\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX4\u003c\/td\u003e\n\u003ctd\u003eM40i (G02)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2024\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX5\u003c\/td\u003e\n\u003ctd\u003exDrive40i (G05)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2024\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX6\u003c\/td\u003e\n\u003ctd\u003exDrive40i (G06)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2024\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX7\u003c\/td\u003e\n\u003ctd\u003exDrive40i (G07)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eZ4\u003c\/td\u003e\n\u003ctd\u003eM40i (G29)\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2024\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eSupra\u003c\/td\u003e\n\u003ctd\u003eA90 3.0\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"OneFastShop","offers":[{"title":"Default Title","offer_id":44694890512556,"sku":"B58DP","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0480\/2160\/2467\/files\/b58-catless-downpipe-bmw-supra.jpg?v=1779206927","url":"https:\/\/onefastshop.com\/products\/b58-4-5-catless-downpipe-bmw-m240i-m340i-440i-540i-supra-a90-2016-2024","provider":"OneFastShop","version":"1.0","type":"link"}