You can do a search on old post about the whistle. My BBK 75mm TB used to do it and it sounds like a blower. When I switched from a GT-40 to a Performer Intake it went away. I have heard that the cause is the idle air bypass. They make a spacer that is supposed to correct this, but i did not install because it went away with the intake change. I know BBK sells this spacer and have seen it at
www.jegs.com . Sounds like you got a killer deal on the car(Minus the stripes

) I paid 8800$ for mine and all it had was a K&N. Congrats on your new purchase
