Originally Posted by Pure745
I'm running AR DP's and Vangard V2 and my car doesn't sound like your car either. It has a little rasp, but it's not as high pitched as yours and it's only under full throttle at high RPM's, the rest its just really deep and you can hear a lot of turbo spool.
Only problem I have is the smoke coming out randomly during deceleration or in freeway traffic, which I have not found a fix for after much searching on here.
Your turbo seals are probably bad. Mine was doing the same thing, got new turbos, problem gone.