Revitalize your BMW's performance with a modern, washable, and reusable K&N air filter designed to boost horsepower and enhance airflow. Perfect for enthusiasts of models such as the BMW 530 (K&N air filter BMW 530) and BMW 540 (K&N air filter BMW 540), it also meets the demands of those looking for a K&N drop-in air filter solution for the BMW 730 and those wondering where to buy a K&N air filter for the BMW 740. Supported by a 10-Year/Million Mile Limited Warranty, this air filter ensures reliable, lasting performance.

Key Benefits

• Improved engine power for better acceleration and increased horsepower
• Robust, layered design featuring premium, oiled cotton media
• Reusable and eco-friendly—clean every 75,000 miles to minimize waste
• Drop-in installation that fits perfectly in your factory air box
• Comprehensive 10-Year/Million Mile Limited Warranty

For detailed technical information, please refer to our Technical Bulletin.

Installation & Fitment

This drop-in air filter is engineered for easy installation with a precise fit in your factory airbox. Compatible models include:• BMW 530i Base (1994–1995)
• BMW 540i Base (1994–1995)
• BMW 740i Base (1993–1995, 1997–1998)
• BMW 740iL Base (1993–1998)

Browse our high-performance drop-in filters in the Air Filters - Drop In collection and upgrade your vehicle today.