K&N 04-07 Subaru STi K&N Drop In Air Filter

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
2004-2006	Subaru	Baja	Turbo
2008	Subaru	Forester	Sports 2.5 X
2008	Subaru	Forester	Sports 2.5 XT
2003-2008	Subaru	Forester	X
2006-2008	Subaru	Forester	X L.L. Bean Edition
2003-2005	Subaru	Forester	XS
2005	Subaru	Forester	XS L.L. Bean Edition
2004-2005	Subaru	Forester	XT
2006-2008	Subaru	Forester	XT Limited
2005	Subaru	Forester	XT Premium
1999	Subaru	Impreza	RS
2004-2005	Subaru	Impreza	WRX
2004	Subaru	Impreza	WRX STI
2004	Subaru	Outback	H6 VDC