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Induction Kit [Mk3 Focus ST]


This part does not affect the base vehicle warranty.

mountune Performance's mk3 Focus ST Induction Kit consists of a cast aluminium low-loss crossover duct, available in a painted satin black finish (with a detailed fins and logo). Also included are a mountune silicone coupling hose, two high quality stainless steel clamps, and can be supplied either with or without a mountune high flow air filter.


  • Cast aluminum crossover duct
  • Silicone coupling hose with high quality clamps
  • Recommend to install with mountune Air Filter
  • Easy installation which requires only simple hand tools


Comprehensive evaluation of the mk3 Focus ST OE air intake system revealed the primary restriction being the OE plastic crossover pipe, as well as the OE air filter.

mountune's engineers have developed a revised cast aluminium crossover pipe with smooth air flow characteristics and no internal obstructions, which improves intake air flow directly into the turbocharger. When coupled with the uniquely designed mountune air filter with dual inlet, the mountune induction kit will provide increased air flow, improved engine response, and increased power.

To help maintain the original vehicle’s NVH quality, and as there is no performance benefit, mountune have elected to retain the OE coupling hoses and connectors where possible.

Customer Reviews
4.9 Based on 70 Reviews
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Filter Reviews:
    United Kingdom United Kingdom

    Overall top quality!! Love them

    United Kingdom United Kingdom
    Induction kit

    All brilliant as normal by mountune 100% and i will be back for more soon

    mountune Induction Kit [Mk3 Focus ST] Review
    United Kingdom United Kingdom
    Fantastic quality

    Most parts I’ve ever fitted to cars require bending, cutting and general fettling to get to fit. This just bolts on. I fitted it in the dark it was that easy. Only tip I would suggest is to fit the silicon pipe to the turbo side first and then attach the plenum as that will make it easier for you.

    mountune Induction Kit [Mk3 Focus ST] Review