Hi all... this would be fantastic if i could get some awnsers ... i did search the forum but no luck ... so here goes ...

93plate WRX

Right just started to happen really .. basicly if i go over 3-4k revs and it judders bad and then engine light comes on ... Driving normaly and changing gear around 3k is fine "turbo not under pressure" but as soon as it is "Judder" and well.... i wont take it fearther for obviuse resons. plus the fact i dont think it will ;/

Now looking under my bonnet and looking at the turbo i have a "black soot like dust" around where the turbo meets the exaulst. i would assume would be the gasket leaking ??? could this be the problem ? i also here the turbo, "with a slight wooshing noise" when turbo isnt even really underload. asif air is leaking pretty bad ...

any help here would be great thx