[David Jerome]

Helghast7, The supercharged sound is likely one of the two following issues. 1. A loose clamp on one of the couplers or 2. a loose connection on the y-pipe to turbos connection pointes. The metal gaskets will make a whining/whistling sound and the two reasons above will answer why you are not seeing boost. I have seen the factory IC pipes make this same noise when they have a tiny whole but usually it is one of hte issues above.