K& N's mandrel-bent aluminum cold air intake systems are guaranteed to provide an increase in horsepower and torque, and are protected by the K& N No-Hassle Lifetime Limited Warranty.
Year
Make
Model
Submodel
Notes
2002 - 2005
Subaru
Impreza
California Air Resources Board Exempt: Yes; CARB EO: D-269-37; Cold Air Intake System: High-Flow Air-Filter, Aluminum tube; Wrinkle Red (CA)
2006 - 2007
Subaru
Impreza
WRX
California Air Resources Board Exempt: Yes; CARB EO: D-269-37; Cold Air Intake System: High-Flow Air-Filter, Aluminum tube; Wrinkle Red (CA)
2006 - 2007
Subaru
Impreza
WRX Limited
California Air Resources Board Exempt: Yes; CARB EO: D-269-37; Cold Air Intake System: High-Flow Air-Filter, Aluminum tube; Wrinkle Red (CA)
2004 - 2007
Subaru
Impreza
WRX STI
California Air Resources Board Exempt: Yes; CARB EO: D-269-37; Cold Air Intake System: High-Flow Air-Filter, Aluminum tube; Wrinkle Red (CA)
2007
Subaru
Impreza
WRX STI Limited
California Air Resources Board Exempt: Yes; CARB EO: D-269-37; Cold Air Intake System: High-Flow Air-Filter, Aluminum tube; Wrinkle Red (CA)
2006 - 2007
Subaru
Impreza
WRX TR
California Air Resources Board Exempt: Yes; CARB EO: D-269-37; Cold Air Intake System: High-Flow Air-Filter, Aluminum tube; Wrinkle Red (CA)