Recently went to Phase 2 with EC parts and tune. The problem is that my V2 intake whistles in the upper RPM range. Now this doesn't necessarily bother me, but my girlfriend is annoyed by it. Is anyone else having the same issue? Is this the norm and inherent to the design of the cold-air intake? How to the other EC intakes sound? Should I go to V1 or V4 for example? Thanks for your input guys.