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.

This Part Fits:

Year	Make	Model	Submodel
2011	BMW	1 Series M	Base
2008-2010	BMW	135i	Base
2007-2010	BMW	335i	Base
2009-2010	BMW	335i xDrive	Base
2011-2013	BMW	335is	Base
2007-2008	BMW	335xi	Base
2008-2010	BMW	535i	Base
2009-2010	BMW	535i xDrive	Base
2008	BMW	535xi	Base
2010-2011	BMW	Z4	sDrive30i
2009-2016	BMW	Z4	sDrive35i
2011-2016	BMW	Z4	sDrive35is