MMR BMW N55 Performance Cotton Panel Air Filter | High-Flow Washable Drop-In OE Airbox Replacement | Fits F20 F21 F22 F23 F30 F31 F32 F33 | M135i M235i M2 335i 435i

MMR Cotton Gauze Panel Insert for BMW N55 F-Series

Give your N55-powered BMW the airflow it deserves with this MMR high-flow panel insert. It slides straight into the factory airbox on F-chassis models and unlocks freer breathing for your turbocharged 3.0 straight six. Expect crisper pedal response, smoother mid-range pull and a richer induction note, all while keeping the OEM airbox look and reliability.

Engineered with multi-layered cotton gauze, the MMR element reduces restriction compared to a paper cartridge yet maintains excellent filtration. In our own use on standard N55 cars, we have seen a noticeable improvement in drivability and a torque uplift of up to 15 Nm in testing. Customers love that it is washable, reusable and designed to be serviced rather than thrown away, making it a smart performance and maintenance upgrade in one.

Highlights

• Direct-fit panel insert for F-series N55 models using the original airbox
• Multi-layer cotton media for high airflow and strong filtration performance
• Sharper throttle feel, faster turbo spool and a deeper intake sound
• Our testing has shown gains of up to 15 Nm on a stock N55 setup
• Serviceable and reusable for long-term value
• No remap required and warranty friendly
• Ideal alternative to a full intake kit while retaining OEM fit and finish

Vehicle coverage

Why enthusiasts choose it

• Plug and play fitment with the stock airbox housing
• Keeps MAF readings stable and drivability OEM-smooth
• Perfect for daily driving, spirited B-road blasts and track days
• A cost-effective performance tweak that you can feel

Installation and support

Simple DIY swap using basic hand tools. Prefer professional fitting and a health check of your intake system and vacuum lines at the same time? Book in with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Search phrases customers use

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Add this MMR panel insert to your basket today for instant gains in response and sound, a cleaner breathing N55 and long-term savings every time you service your car.