I seem to have a squeaky or whistling noise since installing a Frankencar unit. All of my connections are tight; so I know there aren't any air leak issues. It has nothing to do with the hissing sound associated with aftermarket intakes. It isn't very loud and can only be heard with the windows down. The noise happens when I just tap and let off the gas while cruising... only under very mild acceleration. It's something I can live with, but I'm just wondering if anyone has the same experience.

 

whistle is normal

 

yup, same here.

 

This has been covered a lot. It's normal....mine does it too.

 

Just make sure you have no leaks. Mine doesn't whistle but then again Steve installed mine personally.

 

You might have a small whole or something in a hose or something, check all of them, mine doesnt whistle...