{"product_id":"stone-exhaust-bmw-b58-g02-g05-g11-g30-f20-f30-f32-eddy-catalytic-downpipe-inc-m140i-m240i-340i-540i-740i-x4-m40i-xdrive-x5-40i-xdrive-x6-40i-xdrive","title":"Stone Exhaust BMW B58 Eddy Catalytic Catted Performance Downpipe - M140i M240i 340i 440i 540i 740i X3 M40i X4 M40i Z4 M40i (F20 F22 F30 F32 F33 F36 G30 G31 G11 G12 G01 G02 G29) | Euro 6 UK MOT Friendly High-Flow","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \u003ch2\u003eStone Exhaust Eddy Catalytic Sport Cat Downpipe for BMW B58\u003c\/h2\u003e\n  \n  \u003cp\u003eGive your B58-powered BMW the response and soundtrack it deserves with Stone Exhaust’s Eddy Catalytic sport cat downpipe. This high-flow, road-legal catalyst keeps emissions in check while letting the turbo breathe, delivering quicker spool, crisper throttle and a deeper, more purposeful tone. It remains Euro 6 compliant and MOT safe in the UK, so you can enjoy a true performance upgrade without the hassle.\u003c\/p\u003e\n  \n  \u003cp\u003eWe have installed this unit on our own demo cars and many customer builds. Fitment is spot on, build quality is superb and the driving improvement is exactly what B58 owners want. Customers consistently praise the workmanship, the OEM-like installation and the real on-road gains.\u003c\/p\u003e\n  \n  \u003ch3\u003eWhat makes the Eddy Catalytic sport cat special\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eEddy Catalytic Technology creates a controlled vortex in the core for excellent flow and clean emissions\u003c\/li\u003e\n    \u003cli\u003eBehaves like a dense 400 cpsi catalyst at low rpm for emissions, then flows comparable to a 100 cpsi race cat under load\u003c\/li\u003e\n    \u003cli\u003eSmoother turbo response, stronger mid-range and a richer straight-six soundtrack\u003c\/li\u003e\n    \u003cli\u003eDesigned for error-free running on suitable vehicles with no warning lights\u003c\/li\u003e\n    \u003cli\u003eEuro 6 compliant and MOT friendly for UK road use\u003c\/li\u003e\n    \u003cli\u003eDirect replacement using factory mounting points with no cutting required\u003c\/li\u003e\n    \u003cli\u003eCrafted from 304-grade stainless steel for durability and corrosion resistance\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eEngineering details\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eOptimised O2 sensor placement to maintain accurate closed-loop fuelling and drivability\u003c\/li\u003e\n    \u003cli\u003eOEM part 3D scanned for precise routing and heat clearance\u003c\/li\u003e\n    \u003cli\u003e7-axis CNC bending with up to 98 percent roundness control to minimise restriction\u003c\/li\u003e\n    \u003cli\u003eReinforced turbo flange area with crisscross, overlapping welds to withstand extreme heat cycles\u003c\/li\u003e\n    \u003cli\u003eRobotic spot welding for consistent penetration and strength\u003c\/li\u003e\n    \u003cli\u003eComputer-optimised tubing diameter and 3D pathing for exact fit\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eCompatibility – BMW with B58 straight-six turbo\u003c\/h3\u003e\n  \u003cp\u003eBMW 1 Series\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eF20 LCI \/ F21 LCI M140i \/ M140i xDrive (2015+)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eBMW 2 Series\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eF22 M240i \/ M240i xDrive (2015+)\u003c\/li\u003e\n    \u003cli\u003eF22 LCI M240i \/ M240i xDrive (2016+)\u003c\/li\u003e\n    \u003cli\u003eF23 M240i \/ M240i xDrive (2015+)\u003c\/li\u003e\n    \u003cli\u003eF23 LCI M240i \/ M240i xDrive (2016+)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eBMW 3 Series\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eF30 LCI \/ F31 LCI 340i \/ 340i xDrive (2014+)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eBMW 4 Series\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eF32 440i \/ 440i xDrive (2015+), F32 LCI (2016+)\u003c\/li\u003e\n    \u003cli\u003eF33 440i \/ 440i xDrive (2015+), F33 LCI (2016+)\u003c\/li\u003e\n    \u003cli\u003eF36 440i \/ 440i xDrive (2015+), F36 LCI (2016+)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eBMW 5 Series\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eG30 540i \/ 540i xDrive (2015+)\u003c\/li\u003e\n    \u003cli\u003eG31 540i xDrive (2016+)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eBMW 7 Series\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eG11 740i (2014+)\u003c\/li\u003e\n    \u003cli\u003eG12 740i \/ 740i xDrive (2014+\/2015+)\u003c\/li\u003e\n    \u003cli\u003eG12 740Li \/ 740Li xDrive (2014+\/2015+)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eBMW X Models\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eG01 X3 M40i (2016–2018)\u003c\/li\u003e\n    \u003cli\u003eG02 X4 M40i xDrive (2017+)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eBMW Z Series\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eG29 Z4 M40i (2019+)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003ePart number\u003c\/h3\u003e\n  \u003cp\u003eA214E\u003c\/p\u003e\n  \n  \u003ch3\u003eManufacturer and warranty\u003c\/h3\u003e\n  \u003cp\u003eManufactured by Stone Exhaust\u003c\/p\u003e\n  \u003cp\u003eStone Exhaust 2 Year Warranty\u003c\/p\u003e\n  \n  \u003ch3\u003eFitting and support\u003c\/h3\u003e\n  \u003cp\u003eThis is a direct bolt-on replacement for the factory B58 turbo outlet pipe. Professional fitting is recommended. MJ Modifications in Warwickshire can supply and install this product. For a fitting quote, email \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\u003c\/p\u003e\n  \n  \u003ch3\u003ePopular search terms\u003c\/h3\u003e\n  \u003cp\u003eBMW B58 sport cat, BMW M140i catalyst upgrade, M240i turbo outlet pipe, 340i sports catalytic converter, 440i high flow cat, 540i performance catalyst, 740i sport catalytic downpipe, X3 M40i sport cat pipe, X4 M40i catalyst upgrade, Z4 M40i high flow catalyst, B58 stainless downpipe, Euro 6 sport cat UK, MOT safe sport catalyst, BMW straight-six turbo exhaust upgrade, F20 F22 F30 F32 F33 F36 G30 G31 G11 G12 G01 G02 G29 B58 sport catalyst.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Stone Exhaust","offers":[{"title":"Default Title","offer_id":56008699937154,"sku":null,"price":1589.76,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/STONE_Exhaust_BMW_B58_F20_F21_F22_Eddy_Catalytic_Downpipe_M140i_M240i_1_1946x_621cf46d-cdbd-44c5-9383-5ca39d01fdbe.png?v=1764090954","url":"https:\/\/mjmodifications.co.uk\/products\/stone-exhaust-bmw-b58-g02-g05-g11-g30-f20-f30-f32-eddy-catalytic-downpipe-inc-m140i-m240i-340i-540i-740i-x4-m40i-xdrive-x5-40i-xdrive-x6-40i-xdrive","provider":"MJ Modifications","version":"1.0","type":"link"}