Tonight after switching maps to 93 on the cobb I noticed a loud turbo screech through the fswerks intake I have. If I'm in like 3 or 4th kinda lugging the vehicle and I put my foot to the floor you can hear the turbo start to build then I'll let off and a loud screech sound happens as pressure being released . Almost like a tire skid. Is this something that's bad? I mean on the AP I'm making about 20.5 lbs of boost. Any help.
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