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135 reviews


mountune V2 High Flow Air Filter

As part of our ongoing product development, we are always striving to improve our products and our new updatedV2 High Flow Air Filter for selected Focus models includes several enhancements that substantially enhance air-flow compared to the standard filter and even our previous version.

Improvements include a unique smooth radius in the primary inlet port providing an efficient transition for air-flow along with a shorter inner filter cone to allow maximum air velocity and flow directly to the inlet port.

These updates coupled with double layer cotton gauze with deep pleats that creates a 10-15% increase in filtration surface area compared to other filters on the market.

The oiled filter media is incapsulated in steel mesh that helps to maintain the perfect shape under the most extreme conditions.

Each mountune filter is manufactured using a four step process resulting in a precision fit and virtually no seepage of rubber frame material into the filter media producing the maximum available filter area.


  • OE-quality fit
  • Increased performance
  • Increased induction noise
  • Pre-oiled
  • Lifetime warranty
Customer Reviews
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Filter Reviews:
    Ed W.
    United Kingdom United Kingdom

    High Quality

    Loved the look of this filter which opens up the end of the Ford Focus ST air box which with standard OEM filters is blocked off by the end of the filter. Others claim this improves the induction turbo sound considerably, in my case it makes zero difference to sound or performance. Maybe it’s the placebo effect for them I’m not sure, can only speak as I’ve found Delivery was next day & Mountune boxed it up very well indeed, they have a very efficient professional delivery service.

    mountune mountune V2 High Flow Air Filter Reviewmountune mountune V2 High Flow Air Filter Review
    United Kingdom United Kingdom

    2016 Focus St V2 Air Filter

    Super quick delivery, easy fit and sounds great

    mark f.
    Guernsey Guernsey

    Air box lid and filter

    Excellent service throughout

    mountune mountune V2 High Flow Air Filter Review