K&N 04 BMW 525i 2.5L-L6 Drop In Air Filter

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!
Technical Bulletin


This Part Fits:

Year	Make	Model	Submodel
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