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19 reviews


mountune High Flow Air Filter [Mk4 Focus]

The mountune high-flow cotton gauze panel filter for the Mk4 Focus provides an instant improvement in both performance and induction noise and is easily installed in less than a minute.

Each mountune filter is manufactured using a multi-stage process resulting in a great fit and virtually no seepage of frame material into the filtration media producing the maximum available filter area.


  • Increased performance
  • Increased induction noise
  • Lightly oiled
  • Includes 'do not discard airbox sticker'
  • Lifetime warranty against manufacturing defects
  • As used in our m330 power upgrade

    Compatible models:

    Mk4 Focus ST 2.3-litre EcoBoost
    Mk4 Focus ST 2.0 EcoBlue (Diesel)
    Mk4 Focus ST-Line 1.5-litre EcoBoost
    Mk4 Focus ST-Line 1.0 EcoBoost

    Customer Reviews
    5.0 Based on 19 Reviews
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    Filter Reviews:
      Australia Australia
      Mountune High Flow Air Filter [Mk4 Focus]

      Excellent service and a quality product. Very happy.

      Graham G.
      United Kingdom United Kingdom
      Great product

      Great quality, easy fit.

      simon a.
      United Kingdom United Kingdom
      Mk4 focus

      First class service would recommend to anyone.