MMR Performance High-Flow Cotton Gauze Panel Air Filter (Drop-In, Washable, Reusable) for BMW F-Series B48/B58 2.0/3.0 - 1/2/3/4 Series F20 F21 F22 F23 F30 F31 F32 F33 - M140i M240i 340i 440i 330i 430i 230i 220i 125i 120i - OEM Airbox Intake Upgrade

Unlock effortless breathing and a sharper driving feel for your BMW B48 or B58 with this MMR high-flow cotton gauze panel insert. It replaces the standard paper element inside the original airbox, giving quicker throttle response, a livelier turbo spool sound and a subtle uplift in performance without compromising reliability. Washable and reusable, it is the smart intake upgrade for daily road use and spirited weekend drives.

Why enthusiasts choose this uprated panel insert

• High-flow cotton gauze media that helps the engine inhale more freely
• Direct-fit replacement for the factory airbox panel element with zero cutting
• Reusable and washable for long-term savings versus disposable paper filters
• Crisper response and a richer induction note you can enjoy every drive
• OEM-like fit with warranty-friendly peace of mind

Proven on the road

We have run these filters on our own cars and customer vehicles at MJ Modifications and they consistently make the engine feel keener and more responsive. On a standard B58 we have seen an extra 15 Nm of torque in testing. Small tweak, big grin.

Vehicle compatibility

For BMW F-series models fitted with B48 2.0 turbo petrol and B58 3.0 turbo petrol engines, including:

• BMW 1 Series F20 F21 2011–2019: 120i, 125i, M140i, M140i xDrive
• BMW 2 Series F22 F23 2013–2020: 220i, 230i, M240i, M240i xDrive
• BMW 3 Series F30 F31 2011–2019: 320i, 320i xDrive, 330i, 330i xDrive, 340i, 340i xDrive
• BMW 4 Series F32 F33 2013–2020: 420i, 420i xDrive, 430i, 430i xDrive, 440i, 440i xDrive

Not suitable for G-series vehicles. For G-series B48 and B58 applications please use MMR part number MMR01-1701.

What you will notice

• Smoother intake airflow and a more immediate pedal feel
• Deeper induction character without unwanted cabin drone
• Potential for modest torque and efficiency gains thanks to reduced restriction

Installation and support

Simple DIY fit in minutes using the stock airbox. Prefer a professional install or a while-you-wait service? Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Why buy from MJ Modifications

• Tried and tested on our own B48 and B58 cars and many happy customer builds
• Friendly expert advice from enthusiasts who fit and use these parts
• Fast UK dispatch and aftersales support you can rely on

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