K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.
Installation Instructions


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