G’day everyone I’ve just had the front pinion bearing replaced on my wrx 2005 mod.i got the car back today after one week and straight away noticed that there was a problem a whistling noise coming from the engine bay,the hose from the intercooler to the turbo was not connected so l fixed that problem only to notice that the blow off valve is not working as well.so I don’t know if everything has been connected properly.it seems to me that I’m not getting full boost.
I don’t want to hassle the mechanic because he has looked after me quite well.
Please help as i am not mechanically minded.i’m nor if someone can help this Sunday it would be aprreciated.
Cheers Steve.

Steve, I don't see the problem to take the car back or make a call in the first instance when you had the issue.