Subaru WRX STI Replacement Air Filters

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

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

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

  1. 2021 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 422,39 kr. Regular Price 563,09 kr.
    AEM-28-50092
    K&N
  2. 2021 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    33-5092
    K&N
  3. 2020 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 422,39 kr. Regular Price 563,09 kr.
    AEM-28-50092
    K&N
  4. 2020 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    33-5092
    K&N
  5. 2019 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 422,39 kr. Regular Price 563,09 kr.
    AEM-28-50092
    K&N
  6. 2019 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    33-5092
    K&N
  7. K&N
  8. K&N
  9. 2018 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    33-2304
    K&N
  10. K&N
  11. K&N
  12. 2017 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    33-2304
    K&N
  13. K&N
  14. K&N
  15. 2016 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    33-2304
    K&N
  16. 2015 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    AEM-28-20304
    K&N
  17. K&N
  18. K&N
  19. 2015 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    33-2304
    K&N
  20. 2014 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    AEM-28-20304
    K&N
  21. K&N
  22. K&N
  23. 2014 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    33-2304
    K&N
  24. 2013 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    33-2304
    K&N
  25. 2013 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    AEM-28-20304
    K&N
  26. K&N
  27. K&N
  28. 2012 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    AEM-28-20304
    K&N
  29. K&N
  30. K&N
  31. 2012 Subaru WRX STI 2.5L H4 Gas air filter
    Special Price 543,89 kr. Regular Price 725,19 kr.
    33-2304
    K&N
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