Boost leak?

[degen]

Over the last few days i've noticed a whistling / whining sound coming from the engine bay, but I can't for the life of me find out where.

Clip of the noise:
http://www.youtube.com/watch?v=cG-qNLOcI_Q

Basically it happens whether or not the car is in or out of gear - although it's a lot louder when the car is in gear. Also when in higher gears it seems to be louder than when in lower gears. It doesn't seem to be related to road speed either.

 

[Mon]

just try getting someon to rev the egine while you look for the boost leak you will certainly notice it sounds like a hurricane under the car

 

[Mon]

double post