BMW 420i Performance Cold Air Intakes

Buy now from the K&N Store and get a 100% Money Back Guarantee on any cold air intake system!

• Designed to increase power and torque
• K&N Million Mile Limited Warranty®
• Replaces restrictive factory air intake system
• Easy to install performance, usually in 90 minutes or less

Add more horsepower to your BMW 420i with a K&N cold air intake system. K&N BMW 420i cold air intakes are easy to install and add power & acceleration while protecting the vehicle's engine.