Cobra Sport BMW M140i/M240i B58 Mid Pipe Centre/Center Section - Resonator/Silencer Delete, OPF/GPF/PPF Delete (Track Use), 3" 76mm Straight Pipe Exhaust Upgrade - Fits F20 F21 F22 F23 1 Series/2 Series - Bolt-On Midpipe from Cat to Rear Box

Transform the soundtrack of your B58-powered BMW

Give your six-cylinder 1 Series or 2 Series the voice it deserves with this Cobra Sport centre section upgrade. Designed for the M140i and M240i, this direct-fit mid-pipe replaces the factory middle section for a more aggressive, motorsport-inspired tone while keeping the rear box in place for everyday use.

Key features

• 3 inch, 76.2 mm pipework for the centre section
• Fits from the catalytic converter area to before the rear silencer, replacing the entire mid section
• Early cars: removes both centre silencers for a de-resonated, straight-through flow
• Later cars with OPF, GPF or PPF: replaces the factory petrol particulate filter unit
• Supplied with all required fittings and gaskets for straightforward install and easy return to standard if desired

Fitment

Compatible with BMW M140i and M240i models, including OPF, GPF and PPF variants. Ideal for F20 and F21 1 Series hatchbacks and F22 and F23 2 Series coupé and convertible models running the turbocharged B58 straight six.

What you will hear

Expect a louder, deeper and sportier exhaust note with enhanced character, sharper upshifts and a more purposeful presence at idle and on throttle. This res delete style mid-pipe unlocks the authentic M Performance tone many owners want from their daily driver or weekend track car.

Why choose Cobra Sport from MJ Modifications

We have fitted this upgrade for many customers and the feedback has been consistently positive. Owners love the stronger soundtrack, the quality of the construction and the simple, reversible install. As enthusiasts ourselves, we rate this as one of the best-value sound upgrades for the M140i and M240i.

Installation and support

• Direct bolt-on mid section with included hardware
• We offer professional fitting at MJ Modifications, Warwickshire, with the care your car deserves
• Request a fitting quote: info@mjmodifications.co.uk

Important notes

• Later M140i and M240i models equipped with a petrol particulate filter will require basic engine tuning at the time of fitment to cancel the EML warning light
• Use on vehicles originally equipped with a PPF is for motorsport and off road use only

Search-friendly terms

M140i mid-pipe, M240i midpipe, centre silencer delete, res delete, straight pipe centre section, F20 F21 F22 F23 exhaust upgrade, BMW B58 exhaust sound, OPF removal track use, GPF delete track use, de-resonated centre pipe, performance mid section, cat section to rear box pipework.