K&N Air Filters for the Subaru Impreza WRX STi

Subaru Impreza WRX STi Replacement Air Filters

Buy now from the K&N's Online Store and get a 100% money back guarantee on any air filter!
  • Designed to Increase Horsepower and Acceleration
  • High Air Flow with Excellent Filtration
  • K&N Million Mile Limited Warranty®
  • Lasts up to 50,000 Miles Before Cleaning is Required Depending on Driving Conditions
Buy a K&N air filter. Help your Subaru Impreza WRX STi run better.
K&N Automotive Replacement Air Filters
Vehicle DescriptionPart Number Product Image
2014 Subaru Impreza WRX STi 2.5L H4 F/I - All
Automotive
2014 Subaru Impreza WRX STi 2.5L Air Filter
33-2304 Get Pricing and Buy 33-2304 Impreza WRX STi Air Filter
2013 Subaru Impreza WRX STi 2.5L H4 F/I - All
Automotive
2013 Subaru Impreza WRX STi 2.5L Air Filter
33-2304 Get Pricing and Buy 33-2304 Impreza WRX STi Air Filter
2012 Subaru Impreza WRX STi 2.5L H4 F/I - All
Automotive
2012 Subaru Impreza WRX STi 2.5L Air Filter
33-2304 Get Pricing and Buy 33-2304 Impreza WRX STi Air Filter
2011 Subaru Impreza WRX STi 2.5L H4 F/I - All
Automotive
2011 Subaru Impreza WRX STi 2.5L Air Filter
33-2304 Get Pricing and Buy 33-2304 Impreza WRX STi Air Filter
2010 Subaru Impreza WRX STi 2.5L H4 F/I - All
Automotive
2010 Subaru Impreza WRX STi 2.5L Air Filter
33-2304 Get Pricing and Buy 33-2304 Impreza WRX STi Air Filter
2009 Subaru Impreza WRX STi 2.0L H4 F/I - All
Automotive
2009 Subaru Impreza WRX STi 2.0L Air Filter
33-2304 Get Pricing and Buy 33-2304 Impreza WRX STi Air Filter
2009 Subaru Impreza WRX STi 2.5L H4 F/I - All
Automotive
2009 Subaru Impreza WRX STi 2.5L Air Filter
33-2304 Get Pricing and Buy 33-2304 Impreza WRX STi Air Filter
2008 Subaru Impreza WRX STi 2.0L H4 F/I - All
Automotive
2008 Subaru Impreza WRX STi 2.0L Air Filter
33-2304 Get Pricing and Buy 33-2304 Impreza WRX STi Air Filter
2008 Subaru Impreza WRX STi 2.5L H4 F/I - All
Automotive
2008 Subaru Impreza WRX STi 2.5L Air Filter
33-2304 Get Pricing and Buy 33-2304 Impreza WRX STi Air Filter
2007 Subaru Impreza WRX STi 2.5L H4 F/I - All
Automotive
2007 Subaru Impreza WRX STi 2.5L Air Filter
33-2232 Get Pricing and Buy 33-2232 Impreza WRX STi Air Filter
2007 Subaru Impreza WRX STi 2.0L H4 F/I - All
Automotive
2007 Subaru Impreza WRX STi 2.0L Air Filter
33-2304 Get Pricing and Buy 33-2304 Impreza WRX STi Air Filter
2006 Subaru Impreza WRX STi 2.5L H4 F/I - All
Automotive
2006 Subaru Impreza WRX STi 2.5L Air Filter
33-2232 Get Pricing and Buy 33-2232 Impreza WRX STi Air Filter
2005 Subaru Impreza WRX STi 2.0L H4 F/I - All
Automotive
2005 Subaru Impreza WRX STi 2.0L Air Filter
33-2154 Get Pricing and Buy 33-2154 Impreza WRX STi Air Filter
2005 Subaru Impreza WRX STi 2.5L H4 F/I - All
Automotive
2005 Subaru Impreza WRX STi 2.5L Air Filter
33-2232 Get Pricing and Buy 33-2232 Impreza WRX STi Air Filter
2004 Subaru Impreza WRX STi 2.5L H4 F/I - All
Automotive
2004 Subaru Impreza WRX STi 2.5L Air Filter
33-2075 Get Pricing and Buy 33-2075 Impreza WRX STi Air Filter
2004 Subaru Impreza WRX STi 2.0L H4 F/I - All
Automotive
2004 Subaru Impreza WRX STi 2.0L Air Filter
33-2154 Get Pricing and Buy 33-2154 Impreza WRX STi Air Filter
2003 Subaru Impreza WRX STi 2.0L H4 F/I - All
Automotive
2003 Subaru Impreza WRX STi 2.0L Air Filter
33-2154 Get Pricing and Buy 33-2154 Impreza WRX STi Air Filter
2002 Subaru Impreza WRX STi 2.0L H4 F/I - All
Automotive
2002 Subaru Impreza WRX STi 2.0L Air Filter
33-2232 Get Pricing and Buy 33-2232 Impreza WRX STi Air Filter

K&N replacement air filters can help your car or truck run better.