Right guys,

Bit of a problem here my car is tuned to 300bhp with a induction kit, downpipe, sports cat, remap and a intercooler.

It's been into ford twice for an oil leak in 2 weeks, 1st time it was a oil gasket housing diaphram that cost me near on £500 to get sorted (including and oil and filter change) - a week later it's was still dripping oil and when I checked it only had a smidge in the car, so I took it back and they said it was an o-ring seal on the return pipe of the turbo which they sorted, since then it has dropped boost pressure to half - so i've sent it back and they now say it's got nothing to do with them and they wont touch the car cos it's modified!! It really annoys me as it was fine with turbo pressure until they looked at this o-ring thing!! AAAARRGGHH!!

If you drive along with the window down you can hear air venting when the turbo kicks in - which it has never done before

So I need help please guys! i'm stuck now, does anybody know any good and reputible focus st tuners in the North west and what do we think it is?

I though it was just a boost pipe that had dropped off from when they fiddled with the turbo but not according to them!! Grrrrrr