K&N Washable Reusable Panel Air Filter Upgrade for BMW 4 Series F32 F33 F36 & M4 F82 (2014+) - High-Flow Cotton Gauze Drop-In OEM Replacement for Stock Airbox, Performance Intake Filter Element, Fits 420i 428i 430i 435i 440i, Coupe Convertible Gran Coupe

K&N Cotton Gauze Intake Filter Insert for BMW 4 Series F32 F33 F36 and BMW M4 F82 2014+

Unlock smoother breathing and crisp response from your BMW with this premium K&N intake filter insert. Designed as a direct fit element for the stock airbox on F32, F33, F36 and F82 models from 2014 onward, it replaces the restrictive disposable paper element with K&N’s legendary cotton media. The result is freer airflow, a more eager rev range and the satisfying induction tone enthusiasts love, all while maintaining excellent engine protection.

It is a cleanable, serviceable, long life filter that pays for itself over time. Simply clean and re-oil at the recommended intervals instead of buying throwaway filters again and again. No remap required and fully compatible with factory electronics, sensors and the original airbox layout.

Key advantages

• Direct fit insert for the standard BMW airbox on F32, F33, F36 and F82
• High quality multi-layer cotton gauze for outstanding filtration and airflow
• Reusable, cleanable and serviceable for long term savings and less waste
• Sharper pedal response and smoother pull through the revs
• Enhanced induction sound while retaining OEM refinement
• No tuning needed and fully compatible with factory ECU calibration
• K&N Million Mile Limited Warranty for peace of mind

Compatibility

BMW 4 Series F32, F33, F36 and BMW M4 F82, 2014 onward. If you would like us to confirm the filter for your exact model year and airbox, get in touch and we will help you check.

Real world feedback

We run K&N filters on our own builds and our customers consistently report a more responsive feel, a nicer intake note and great value over time thanks to the reusable design.

Fitting and support

Simple DIY install using basic tools. Professional installation is available at MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

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