http://www.youtube.com/user/BriC175?.../2/4TmMf_j-jp4
As can be heard in this video, there is a whining sound in the background which is coming from the turbo area. The car boosts well, and pulls like it should, and doesn't smoke at all, which would say the turbo is in good working order, but it definitely seems to be coming from the intake area.
When you take the air filter off and put your hand over the intake, the noise seems to go away too.
Any ideas? Is it something to do with my air filter? I've had the same filter fitted to one of my old GT Turbo's in the same place (I know, it's not a great place. I need to re-direct it really) in the past, but it didn't make this noise..
All help appreciated. Cheers