Upgrade your BMW today with K&N's top - selling drop - in air filter! Here's why you need it: • Superior Airflow: Enjoy a state - of - the - art layered, oiled cotton media design that maximizes airflow for your engine. • Horsepower Increase: Get a significant boost in horsepower for a more exhilarating driving experience. • Long - lasting & Warranty: Reusable and built to last your vehicle's lifetime, backed by K&N's 10 - Year/Million Mile Limited Warranty. This filter installs easily into your factory air box. Fits 2006 - 2010 BMW M5 and M6 Base models.

If you're a BMW M5 or M6 owner from 2006 - 2010 looking to enhance your car's performance, this K&N drop - in air filter is for you. Whether you're cruising on the highway or taking your car for a spin on the track, this filter will improve your engine's airflow. It's designed to fit right into your factory air box without any hassle. No need to worry about its lifespan as it's built to last as long as your vehicle, and it comes with a great warranty.