Hey, i just had a K&N CAI installed on my 05 gtp and i dont notice the deep loud sound from the new intake that i have on all the intakes on my other cars, its just a much louder whine, which does sound cool but not sure if its is the normal CAI sound of the GTP's due to the supercharger or not. Also i get a tapping sound when driving at around 2500-3000 RPM's, i believe it is also coming from the intake. Any ideas as to whats up?