Afetr spending weeks deciding on which valve to buy, i settled on the Mountune one. Mainly because of their reputation. I ordered the valve and fitted it as soon as possible. Fitting was straight forward. Car on ramp, offside wheel off, three retaining bolts undone, vacuum line off and the old valve was out. Fitting the Mountune valve was (obviously) the opposite of removal. Wheel back on and engine start ......jobs a good un - 15 mins max. There were come queries on the orientation on the valve but rest assured, the 'M' logo goes in the 4'o clock position so the ports match up in the valve and the turbo. I will say to anyone ordering this who's after a bit of noise......this is not the valve for you. Its silent. Its quieter than the stock valve. I have an open cone air filter and intake kit and i could hear the old valve venting back. I cant hear this new Mountune valve at all. Its silent. I'm ok with that. I bought this valve to stop the whisting i had from the stock valve on light throttle gear changes. It might be in my head but throttle seems snappier now and it certainly holds boost a bit better. I would recommend this valve as an upgrade to the stock part for anyone who doesnt want silly noises coing from under the bonnet. Build quailty is great, fitting is easy and it just works.
The item is a massive improvment compared to the original valve.
top quality easy to fit , great upgrade