I just got done installing the C&L True Flow Intake and the Diablo Sport Predator tune on my '06 manual GT and now I hear a sucking noise when I hit the accelerator hard. If I have it in neutral and hit the throttle to rev it up I hear a brief noise that sounds like it's sucking in air somewhere that it shouldn't be. I checked all the connections for leaks and couldn't find any. It sounds like the noise comes from the filter...is this normal...just the filter sucking in air?
Lol it's perfectly normal. You are hearing more induction from the CAI.