Subaru Impreza WRX STi Replacement Air Filters

Buy now from K&N's Online Store and get a 100% money back guarantee on any Subaru Impreza WRX STi air filter!

  • Designed to Increase Horsepower and Acceleration
  • High Air Flow with Excellent Filtration
  • Top Performance Accessory for Subaru Impreza WRX STi Models
  • K&N Million Mile Limited Warranty®

Order your K&N replacement air filter Factory Direct today! Help your Subaru Impreza WRX STi run better. Fast and FREE SHIPPING with any Subaru Impreza WRX STi air filter

  1. 2014 Subaru Impreza WRX STi 2.5L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2304
    K&N
  2. K&N
  3. 2013 Subaru Impreza WRX STi 2.5L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2304
    K&N
  4. K&N
  5. 2012 Subaru Impreza WRX STi 2.5L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2304
    K&N
  6. K&N
  7. 2011 Subaru Impreza WRX STi 2.5L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2304
    K&N
  8. K&N
  9. 2010 Subaru Impreza WRX STi 2.5L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2304
    K&N
  10. K&N
  11. 2009 Subaru Impreza WRX STi 2.5L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2304
    K&N
  12. K&N
  13. 2009 Subaru Impreza WRX STi 2.0L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2304
    K&N
  14. K&N
  15. K&N
  16. 2008 Subaru Impreza WRX STi 2.5L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2304
    K&N
  17. 2007 Subaru Impreza WRX STi 2.5L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2232
    K&N
  18. 2006 Subaru Impreza WRX STi 2.5L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2232
    K&N
  19. 2005 Subaru Impreza WRX STi 2.5L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2232
    K&N
  20. 2004 Subaru Impreza WRX STi 2.5L H4 Petrol air filter
    Special Price £48.69 Regular Price £64.99
    33-2075
    K&N
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