| Sometimes I wish mine popped and whined less...
The GTT exhaust bypass pipe isn't expensive and is the culprit for my excessive popping. If you want it to whine then you probably need to mess with the airbox. Again I have the GTT CAI,, but I also have a smaller pulley (GTT) that works the supercharger harder that will add to the effect.
Fen GTT230+ in DS | 
