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Uprated Re-Circulating Valve

The mountune uprated turbo re-circulating valve is a direct replacement for the OE component.

Machined from solid aluminium with a piston-type design (compared to the OE diaphragm) the more robust design and material are suitable for vehicles in advanced state of tune.

A diaphragm-design recirculation valve could function less effectively when the pressure differential across the turbocharger compressor housing is increased above the original operating conditions. This can cause the valve to open prematurely, leading to possible turbocharger damage due to increased turbo shaft speed.

mountune's engineers have designed an uprated, more robust valve, that features a metal piston and rubber sealing system. This design also features an uprated spring that improves sealing pressure, which allows the valve to remain closed under high pressure conditions.

This product is compatible with mk2 Focus RS, mk2 Focus ST and mk3 Focus ST.


  • Mounts directly on OE turbocharger
  • Easy installation
  • Suitable for vehicles running increased boost pressure
  • Superior piston type design
Customer Reviews
4.9 Based on 112 Reviews
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    Richard L.
    United Kingdom United Kingdom
    Re-Circulating Valve fitting and performance

    The quality and feel of the item is impressive and as others have remarked, it is a significant improvement on the OEM part it replaces. YouTube videos were v useful; watched a number prior to fitting the valve myself. Relatively simple, dependent upon the tools you have. Raise the vehicle, remove the f/o/s wheel and access from there. I also removed the engine ‘under-tray’ but didn’t gain any better access, just a different viewpoint and the benefit of anything dropped would be easily recovered from the ground. The 3 retaining bolts were hex-bolts on my car. This is where having a good tool selection is necessary. Ensure you have the correct tool and a decent extension bar to reach the valve. One video mentions a 450mm bar; that would certainly help. The bolt at the 4 o’clock position was difficult to access squarely due to an ‘unassociated’ bolt sitting in front of it and reducing access. This is where a rounded hex bit would have helped me, so take care and be patient if you have hex bolts and no rounded-bit. Once the bolts were removed the plate retaining the valve in place was still held by something; wasn’t free in the hand so required manoeuvring to remove the OEM valve. The plate has an electrical connector secured to it’s top l/h edge. It wasn’t readily obvious how to release the whole of the electrical connector hence I left it in place and merely dealt with the inability to completely remove the plate/valve cover. Fitting of the Mountune valve was simply a reciprocal action; take care refitting the bolts, again particularly the 4 o/clock bolt. reviewing the fitting, I think accessing the valve location from the l/h/s of the suspension strut offers more room to manoeuvre; I approached it from the front, r/h/s of the strut and access is certainly minimal. Performance - (the car is 30K-miles, standard, no engine upgrades as yet) Low speed response does feel better; more definite (less lag, if standard-fit affords any feeling of lag?) When pushing-on, again it feels firmer in response. I imagine the OEM valve was still performing ok (given the mileage) and the advantage of the new valve would be best felt on an upgraded engine. (I’m waiting for the MT275 to become available) Longevity of performance should be an ‘anonymous’ advantage too I expect. Would I recommend? - Yes. Can you fit it yourself? - Yes: ensure you have the correct tools and don’t rush it. Fitting time was less than 1.5hrs from wheels up to wheels down.

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    GS M.
    United Kingdom United Kingdom

    Fits perfect and great quality

    J c.
    United Kingdom United Kingdom
    Re circ valve

    Fast delivery good quality part