BMW M240i B58 Turbo Downpipe / Down Pipe by Cobra Sport – Front Pipe Upgrade, 200 Cell High Flow Sports Cat or Catless Decat De‑Cat Race Pipe | 2 Series Performance Exhaust

Unlock the full potential of your BMW M240i with a precision-made turbo down pipe upgrade that transforms response, flow and soundtrack. This Cobra Sport front pipe replaces the restrictive factory catalyst between the turbo outlet and the centre section, delivering faster spool, stronger mid‑range pull and a richer, more purposeful tone. We have fitted this on our own builds and customers consistently praise the quality, fitment and feel on the road and track.

Choose the ideal configuration for your setup, whether you are chasing maximum performance for motorsport use or a high-flow road solution to complement your tune.

Your options

• High‑flow sports catalyst: 4.5 in / 114.3 mm 200 cell performance catalyst, matched to 4.5 in / 114.3 mm tapering to 3 in / 76.2 mm pipework for excellent gas velocity and reduced back pressure.
• Catless race pipe: Manufactured with 3.5 in / 88.9 mm pipework for maximum flow from the turbo to the mid‑pipe.

Why M240i owners choose this upgrade

• Designed to enhance turbo efficiency and throttle response on the BMW M240i B58 engine.
• Deeper, sportier exhaust note when paired with your existing system or a future cat‑back.
• Direct replacement for the OE catalytic section from turbo to centre exhaust.
• All required fittings and gaskets are included for a straightforward install.

Compliance and use

The catless version is sold for motorsport and off road use only worldwide.

The 200 cell sports catalyst replaces a factory emissions device and is not EC homologated. This may not meet current emission laws for road use in your territory.

Perfect pairing

For the most dynamic soundtrack and performance potential, combine this front pipe with a suitable cat‑back system. The resulting package delivers improved gas flow and a more aggressive yet refined tone under load, while remaining comfortable in‑cabin on cruise.

Professional fitting

Want it installed correctly first time? Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

What you get

• BMW M240i turbo down pipe in your chosen configuration
• All relevant fittings and gaskets

Media

Exhaust Talk Episode Two - Sports Catalyst vs De‑Cat Performance Exhausts

Keywords customers use

BMW M240i B58 downpipe upgrade, BMW 2 Series M240i turbo down pipe, BMW M240i high‑flow catalytic converter, 200 cell sports cat M240i, catless downpipe M240i, BMW M240i performance front pipe, turbo outlet pipe M240i, BMW M240i exhaust upgrade, BMW M Performance 2 Series down pipe, BMW M240i race downpipe.