{"product_id":"fabspeed-bmw-f80-f82-secondary-cat-bypass-x-pipe-m3-m4","title":"Fabspeed BMW M3\/M4 (F80 F82) Secondary Cat Bypass X-Pipe Midpipe | S55 | M Performance Exhaust Compatible","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \u003ch2\u003eFabspeed Centre X Crossover for BMW F80 M3 and F82 M4 - Secondary Catalyst Bypass Mid Section\u003c\/h2\u003e\n\n  \u003cp\u003e\n    Give your S55 a proper voice and free up flow with Fabspeed’s centre X crossover that replaces the restrictive secondary catalysts on the F80 M3 and F82 M4. This precision built middle section sharpens throttle response feel, deepens the tone, and introduces that crisp motorsport character without unwanted cabin resonance. It integrates perfectly with the factory back box and is fully compatible with the BMW M Performance rear silencer.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    We have run this exact setup on our own F8X shop cars and feedback from MJ Modifications customers has been consistently positive on sound quality, fitment and finish. If you are searching for BMW M3 F80 centre exhaust upgrade, BMW M4 F82 crossover pipe, S55 centre section, de-cat secondary link pipes, X crossover mid section for OE backbox, M Performance back box compatible centre pipe, or cat-back middle pipe alternatives, this is the trusted choice.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eHighlights\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eReplaces the OEM secondary catalysts to unlock a freer flowing centre section and a more aggressive soundtrack\u003c\/li\u003e\n    \u003cli\u003eDistinct X crossover tone with a clean, motorsport style note and refined cruising inside the cabin\u003c\/li\u003e\n    \u003cli\u003eDirect bolt-on to factory connection points and the OE rear silencer plus works seamlessly with the BMW M Performance exhaust\u003c\/li\u003e\n    \u003cli\u003eFits all BMW F80 M3 Saloon and F82 M4 Coupe models within the listed years\u003c\/li\u003e\n    \u003cli\u003eNot suitable for the F83 M4 Convertible\u003c\/li\u003e\n    \u003cli\u003eNo check engine light in standard configuration\u003c\/li\u003e\n    \u003cli\u003eMinor cutting required to remove the original centre section on standard cars\u003c\/li\u003e\n    \u003cli\u003eConstructed from T304L stainless steel, CNC mandrel bent with waterjet cut flanges for precise alignment and durability\u003c\/li\u003e\n    \u003cli\u003eBacked by the Fabspeed Lifetime Warranty\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhy choose this centre section\u003c\/h3\u003e\n  \u003cp\u003e\n    The S55 twin turbo straight six comes alive with a true X crossover in the middle of the system. By removing the most restrictive part of the stock centre run, this upgrade delivers more character, improved response feel and the kind of linear, hard-edged tone enthusiasts expect from a high performance BMW. Keep your primary emissions hardware in place while transforming sound and flow where it matters most.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eVehicle coverage\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW 3 Series F80 M3 Saloon 2012 to 2015\u003c\/li\u003e\n    \u003cli\u003eBMW 3 Series F80 LCI M3 Saloon 2015 to 2018\u003c\/li\u003e\n    \u003cli\u003eBMW 4 Series F82 M4 Coupe 2013 to 2017\u003c\/li\u003e\n    \u003cli\u003eBMW 4 Series F82 LCI M4 Coupe 2016 to 2020\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eDoes not fit the F83 M4 Convertible.\u003c\/p\u003e\n\n  \u003ch3\u003ePart numbers\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eFS.BMW.F8X.SCBX - for standard M3 and M4\u003c\/li\u003e\n    \u003cli\u003eFS.BMW.F8X.SCBXM - for cars equipped with the BMW M Performance rear silencer\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation and fitting\u003c\/h3\u003e\n  \u003cp\u003e\n    Straightforward bolt-on using factory mounts. No CEL. Minor cutting is required to remove the stock centre run on standard vehicles. Prefer professional installation. MJ Modifications in Warwickshire can carry out fitting and alignment to OE standards. Request a quote via info@mjmodifications.co.uk.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eCompatibility check\u003c\/h3\u003e\n  \u003cp\u003e\n    For peace of mind before dispatch, provide your UK registration or the last 7 digits of your VIN at checkout and we will confirm fitment.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eManufactured by\u003c\/h3\u003e\n  \u003cp\u003eFabspeed\u003c\/p\u003e\n\n  \u003ch3\u003eLegal notice\u003c\/h3\u003e\n  \u003cp\u003e\n    Purchase disclaimer. Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicle’s electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls.\n  \u003c\/p\u003e\n\n  \u003ch3\u003ePhotos and videos\u003c\/h3\u003e\n  \u003cdiv style=\"margin-bottom: 16px;\"\u003e\n    \u003ciframe width=\"732\" height=\"540\" src=\"https:\/\/www.youtube.com\/embed\/BU0Tk05hVH4\" title=\"F80 M3 M Performance with Fabspeed Midpipe\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"margin-bottom: 16px;\"\u003e\n    \u003ciframe width=\"732\" height=\"540\" src=\"https:\/\/www.youtube.com\/embed\/OLWxfAws8mE\" title=\"F80 M3 with Fabspeed Mid Pipe and Downpipes\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"margin-bottom: 16px;\"\u003e\n    \u003ciframe width=\"732\" height=\"540\" src=\"https:\/\/www.youtube.com\/embed\/mLLbJoib9KE\" title=\"F80 M3 Fabspeed Midpipe with M Performance Exhaust\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"margin-bottom: 16px;\"\u003e\n    \u003ciframe width=\"732\" height=\"540\" src=\"https:\/\/www.youtube.com\/embed\/aJJY7ffUL8A\" title=\"BMW F80 M3 and F82 M4 Fabspeed Secondary Cat Bypass X-Pipe Revs and Driving\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/Fabspeed_BMW_F80_F82_Secondary_Cat_Bypass_X-Pipe_M3_M4_-6_2048x2048.jpg?v=1657200858\" alt=\"Fabspeed centre X crossover for BMW F80 F82 - image 1\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/Fabspeed_BMW_F80_F82_Secondary_Cat_Bypass_X-Pipe_M3_M4_-7_2048x2048.jpg?v=1657200866\" alt=\"Fabspeed secondary catalyst bypass mid section - image 2\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/Fabspeed_BMW_F80_F82_Secondary_Cat_Bypass_X-Pipe_M3_M4_-8_2048x2048.jpg?v=1657200873\" alt=\"BMW M3 M4 S55 centre section upgrade - image 3\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/Fabspeed_BMW_F80_F82_Secondary_Cat_Bypass_X-Pipe_M3_M4_-9_2048x2048.jpg?v=1657200884\" alt=\"Fabspeed X crossover pipe detail - image 4\"\u003e\n  \u003c\/p\u003e\n\n  \u003ch3\u003eHelpful search terms\u003c\/h3\u003e\n  \u003cp\u003e\n    BMW F80 M3 centre exhaust, BMW F82 M4 centre exhaust, F80 M3 crossover pipe, F82 M4 crossover pipe, S55 centre section, X crossover mid section, BMW M3 M4 link pipes, secondary catalyst delete centre pipe, cat bypass link pipes, BMW M Performance back box compatible centre pipe, F8X middle pipe upgrade, stainless T304L BMW centre section, BMW M3 M4 cat back centre upgrade, M3 F80 exhaust centre pipe UK, M4 F82 exhaust centre pipe UK, Fabspeed centre section for S55, BMW M3 M4 performance centre pipe, BMW M3 M4 X crossover stainless, BMW M3 M4 mid section for OE backbox.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Fabspeed","offers":[{"title":"Polished Stainless Steel","offer_id":55975362560386,"sku":null,"price":1421.15,"currency_code":"GBP","in_stock":true},{"title":"M Performance","offer_id":55975362593154,"sku":null,"price":1421.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/FabspeedBMWF80F82SecondaryCatBypassX-Pipe_M3_M4_-1_1946x_cc9eab41-9b0e-4093-b47f-9fde249e4b36.jpg?v=1763321872","url":"https:\/\/mjmodifications.co.uk\/products\/fabspeed-bmw-f80-f82-secondary-cat-bypass-x-pipe-m3-m4","provider":"MJ Modifications","version":"1.0","type":"link"}