MMR Performance Elite Series Foam Panel Air Filter for BMW N55 F-Series - Drop-In OEM Airbox Replacement, High-Flow Washable Reusable Induction/Intake Upgrade for M135i M235i 335i 435i M2 F87 (F20 F21 F22 F23 F30 F31 F32 F33, 2015-2019) incl xDrive

MMR Elite Series foam intake element for BMW N55 engines

Give your turbocharged straight six the airflow it deserves. This high-flow foam filter insert from MMR drops straight into the stock airbox on F‑chassis N55 models, delivering freer breathing and crisp throttle response while keeping factory reliability and drivability. Built using motorsport-grade materials and processes seen in top-level racing, it is engineered for both spirited road use and track work.

Why enthusiasts choose this upgrade

• Direct-fit replacement for the standard filter element in the OEM airbox
• High-grade multi-layer foam for excellent filtration and reduced restriction
• Improves engine breathing for sharper response and turbo efficiency
• Long-life, service-friendly construction for cost-effective ownership
• Retains a discreet factory look with genuine performance benefits

We use this MMR intake element on our own N55 builds and the feedback from customers has been consistently positive on fit, finish and drivability. It is a smart induction upgrade for stock and remapped cars alike, pairing perfectly with the standard airbox to maintain cold-air performance and low intake noise on the motorway, with a subtly enhanced note under load.

Vehicle coverage

Straight swap into the factory airbox on the following BMW models running the N55 engine:

• 1 Series F20 F21 - M135i, xDrive variants - 2015 to 2019
• 2 Series F22 F23 - M235i, xDrive variants - 2015 to 2019
• M2 F87 - 2016 to 2018 N55 models
• 3 Series F30 F31 - 335i, xDrive variants - 2015 to 2019
• 4 Series F32 F33 - 435i, xDrive variants - 2015 to 2019

Key benefits at a glance

• Motorsport-derived foam media balances airflow and dust capture
• Precision-cut to OEM dimensions for an easy install
• Compatible with standard or tuned calibrations
• Designed for repeated service rather than frequent replacement

Fitting and support

This filter insert is a straightforward swap into the original airbox. Prefer professional fitting or a health check while you are there? Book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

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