Upgrade your ride now with K&N's top - selling drop - in air filter! • Superior Airflow: Engineered with a state - of - the - art layered, oiled cotton media design to boost airflow. • Increased Horsepower: Get a significant power increase for a more thrilling driving experience. • Reusable & Long - Lasting: Built to last the lifetime of your vehicle and backed by K&N's 10 - Year/Million Mile Limited Warranty. Easy to install in your factory air box. Start enjoying better performance today! This Part Fits: 2004 - 2007 BMW 525i Base, 2006 - 2007 BMW 525xi Base, 2008 - 2010 BMW 528i Base, 2009 - 2010 BMW 528i xDrive Base, 2008 BMW 528xi Base, 2004 - 2007 BMW 530i Base, 2006 - 2007 BMW 530xi Base, 2007 - 2008 BMW Z4 M Coupe, 2007 - 2008 BMW Z4 M Roadster.

This K&N air filter is perfect for BMW owners from 2004 - 2010 who want to enhance their car's performance. Whether you're cruising on the highway or taking your car for a spin on the track, this filter will provide better airflow and more power. It's easy to install in your factory air box. The filter uses a layered, oiled cotton media design, which is both effective at capturing contaminants and boosting airflow. It's a great choice for anyone looking to get more out of their BMW without spending a fortune.