Ford Focus ST Replacement Air Filters

Buy now from K&N's Online Store and get a 100% money back guarantee on any Ford Focus ST air filter!

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

Order your K&N replacement air filter Factory Direct today! Help your Ford Focus ST run better. Fast and FREE SHIPPING with any Ford Focus ST air filter

  1. K&N Extended Life 24,000 Mile Engine Air Filter - FORD FOCUS IV L3-1.0L F/I
  2. 2022 Ford Focus ST 2.3L L4 Gas air filter
    Special Price €67.49 Regular Price €89.99
    33-3131
    K&N
  3. K&N Extended Life 24,000 Mile Engine Air Filter - FORD FOCUS IV L3-1.0L F/I
  4. 2021 Ford Focus ST 2.3L L4 Gas air filter
    Special Price €67.49 Regular Price €89.99
    33-3131
    K&N
  5. K&N Extended Life 24,000 Mile Engine Air Filter - FORD FOCUS IV L3-1.0L F/I
  6. 2020 Ford Focus ST 2.3L L4 Gas air filter
    Special Price €67.49 Regular Price €89.99
    33-3131
    K&N
  7. K&N Extended Life 24,000 Mile Engine Air Filter - FORD FOCUS IV L3-1.0L F/I
  8. 2020 Ford Focus ST 2.0L L4 Diesel air filter
    Special Price €67.49 Regular Price €89.99
    33-3131
    K&N
  9. 2018 Ford Focus ST 2.0L L4 Diesel air filter
    Special Price €74.99 Regular Price €99.99
    E-2993
    K&N
  10. K&N Extended Life 24,000 Mile Engine Air Filter - FORD C-MAX L4-1.6L F/I
  11. K&N Extended Life 24,000 Mile Engine Air Filter - FORD C-MAX L4-1.6L F/I
  12. 2017 Ford Focus ST 2.0L L4 Gas air filter
    Special Price €74.99 Regular Price €99.99
    E-2993
    K&N
  13. K&N Extended Life 24,000 Mile Engine Air Filter - FORD C-MAX L4-1.6L F/I
  14. 2016 Ford Focus ST 2.0L L4 Gas air filter
    Special Price €74.99 Regular Price €99.99
    E-2993
    K&N
  15. K&N Extended Life 24,000 Mile Engine Air Filter - FORD C-MAX L4-1.6L F/I
  16. 2015 Ford Focus ST 2.0L L4 Gas air filter
    Special Price €74.99 Regular Price €99.99
    E-2993
    K&N
  17. K&N Extended Life 24,000 Mile Engine Air Filter - FORD C-MAX L4-1.6L F/I
  18. 2014 Ford Focus ST 2.0L L4 Gas air filter
    Special Price €74.99 Regular Price €99.99
    E-2993
    K&N
  19. 2013 Ford Focus ST 2.0L L4 Gas air filter
    Special Price €74.99 Regular Price €99.99
    E-2993
    K&N
  20. K&N Extended Life 24,000 Mile Engine Air Filter - FORD C-MAX L4-1.6L F/I
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