Enhance the performance of your BMW 540i with the K&N 97-99 BMW 540i Drop In Air Filter. Designed to boost horsepower and maximize airflow, this high-flow air filter installs directly into your factory air box, making it a quick, hassle-free upgrade. Its advanced design features layered, oiled cotton media that not only enhances engine efficiency but is also washable and reusable for long-lasting durability.

Key Features

• Washable & Reusable Design: Enjoy extended lifespan and easy maintenance with innovative, oiled cotton layers.
• High-Flow Performance: Benefit from improved airflow and increased horsepower for a powerful driving experience.
• Drop-In Installation: Installs effortlessly by replacing your BMW’s factory air filter with no modifications needed.
• Engineered Durability: Built to last and deliver consistent performance over time.
• Exceptional Warranty: Backed by K&N’s 10-Year/Million Mile Limited Warranty for complete peace of mind.

Compatibility

• Fits BMW 540i models from 1997 to 1999

Upgrade your engine’s performance today with this precision-engineered air filter. Experience the advantages of superior airflow and dependable durability that only K&N can provide. Discover more high-performance air filter options in our Air Filters - Drop In collection and feel the difference in your ride.