THE ORIGINAL RED AIR FILTER SINCE 1969
K&N® High-Flow Air Filters™ are trusted by enthusiasts worldwide for their proven performance and exceptional filtration. Built with durable, oiled cotton media, this filter offers significantly better airflow than traditional paper filters—while maintaining excellent filtration efficiency to help protect your engine from harmful contaminants.

WASHABLE & REUSABLE
Designed to last the life of your vehicle, this air filter is washable and reusable. Just clean and re-oil when needed, typically every 50,000 kilometers under normal highway driving conditions.

ENHANCE ENGINE BREATHING
The high-flow filter media allows your S55 engine to breathe more freely, improving throttle response and ensuring optimal combustion conditions under demanding driving.

ENGINEERED FOR PERFORMANCE
Each K&N® air filter undergoes rigorous testing in ISO 5011 facilities to ensure excellent filtration and structural integrity. Built with a strong rubber frame and pre-oiled layers of cotton gauze, it’s ready to drop into your factory airbox with no modifications.

EASY INSTALLATION
Direct replacement for the OEM air filter. Install in minutes using basic tools—no cutting or tuning required.

COMPATIBILITY:
BMW M3 F80 (2014–2019)
BMW M4 F82/F83 (2014–2019)
BMW M2 Competition F87 (2018–2021)
(All with S55 3.0L twin-turbo inline-6 engine)