K&N 05 WRX / 99-06 Impreza / 99-04 Legacy 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. K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. Our stock replacement air filters for street vehicles are covered by K&N's Million-Mile Limited Warranty. Fitment: 1996 Subaru Legacy GT 1996 Subaru Legacy LSi 1996 Subaru Legacy Outback 1997 Subaru Legacy GT 1997 Subaru Legacy LSi 1997 Subaru Legacy Outback 1997 Subaru Legacy Outback Limited 1998 Subaru Legacy GT 1998 Subaru Legacy GT Limited 1998 Subaru Legacy Outback 1999 Subaru Forester Base 1999 Subaru Forester L 1999 Subaru Forester S 1999 Subaru Impreza L 1999 Subaru Impreza Outback 1999 Subaru Impreza RS 1999 Subaru Legacy Brighton 1999 Subaru Legacy GT 1999 Subaru Legacy L 1999 Subaru Legacy L 30th Anniversary 1999 Subaru Legacy Limited 30th Anniversary 1999 Subaru Legacy Outback 1999 Subaru Legacy Outback Limited 1999 Subaru Legacy SUS 30th Anniversary 2000 Subaru Forester Base 2000 Subaru Forester L 2000 Subaru Forester S 2000 Subaru Impreza L 2000 Subaru Impreza Outback 2000 Subaru Impreza RS 2000 Subaru Legacy Brighton 2000 Subaru Legacy GT 2000 Subaru Legacy GT Limited 2000 Subaru Legacy L 2000 Subaru Outback Base 2000 Subaru Outback Limited 2001 Subaru Forester Base 2001 Subaru Forester L 2001 Subaru Forester S 2001 Subaru Impreza L 2001 Subaru Impreza Outback 2001 Subaru Impreza RS 2001 Subaru Legacy GT 2001 Subaru Legacy GT Limited 2001 Subaru Legacy L 2001 Subaru Outback Base 2001 Subaru Outback Limited 2002 Subaru Forester Base 2002 Subaru Forester L 2002 Subaru Forester S 2002 Subaru Impreza Outback 2002 Subaru Impreza RS 2002 Subaru Impreza TS 2002 Subaru Legacy GT 2002 Subaru Legacy GT Limited 2002 Subaru Legacy L 2002 Subaru Outback Base 2002 Subaru Outback Limited 2003 Subaru Baja Base 2003 Subaru Baja Sport 2003 Subaru Forester X 2003 Subaru Forester XS 2003 Subaru Impreza Outback 2003 Subaru Impreza RS 2003 Subaru Impreza TS 2003 Subaru Legacy GT 2003 Subaru Legacy L 2003 Subaru Legacy L SE 2003 Subaru Outback Base 2003 Subaru Outback Limited 2004 Subaru Baja Sport 2004 Subaru Forester X 2004 Subaru Forester XS 2004 Subaru Impreza Outback 2004 Subaru Impreza RS 2004 Subaru Impreza TS 2004 Subaru Legacy GT 2004 Subaru Legacy L 2004 Subaru Legacy L 35th Anniversary 2004 Subaru Outback Base 2004 Subaru Outback Limited 2005 Subaru Baja Sport 2006 Subaru Baja Sport