MMR Performance BMW M135i/M235i

Unlock freer breathing for your BMW M135i and M235i with this MMR induction upgrade. Replace the restrictive factory airbox with a high-flow system that feeds your turbocharged straight six with cooler, cleaner air and a satisfying intake soundtrack. Designed for vehicles running the BMW N55, this direct-fit solution delivers a noticeable uplift in response and performance while keeping engine bay temperatures in check.

The lightweight aluminium hard pipe is formed from a single piece for smooth, uninterrupted airflow to the compressor. A twin-entry cotton gauze cone filter offers excellent filtration and a deeper induction note, while the lower base retains the OEM cold feed and creates an effective thermal barrier around the filter element. Thoughtful details include CNC billet, rubber-isolated mounting points that accommodate engine movement and help keep NVH under control. Finished in MMR’s signature anodised blue with a neat laser-etched logo, it looks as good as it performs.

• High-flow aluminium pipework for reduced restriction and improved breathing
• Twin-entry cotton gauze cone filter for strong filtration and richer induction sound
• Retains factory cold air feed for consistent, cool intake temperatures
• Lower base acts as a thermal shroud to keep hot air away from the filter
• CNC billet, rubber-mounted fixings to minimise unwanted noise and vibration
• Direct-fit, reversible install with no cutting or permanent modification
• Smart anodised blue finish with laser-etched branding

Why choose this induction system

Owners of the M135i and M235i often look for a straightforward air intake upgrade that frees up power, sharpens response, and adds characterful turbo sounds. This MMR kit ticks every box. We have fitted it in-house on customer cars and feedback has been consistently positive for quality, fitment and the driving experience. It is a genuine bolt-on upgrade that complements further tuning without compromising reliability.

Compatible with:

• BMW M135i with N55
• BMW M235i with N55

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Professional fitting

Want it installed by experts who know these cars inside out? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.