I have a 2007 coupe with 19k miles on it. Once I start accelerating my car makes this quiet dentist drill sound. I can't really hear it over 15 mph because of the exhaust sound and ground noise but i'm sure it's still there. Anyone have this problem? Is it common or normal?

Also, as you can see in my sig I have an intake, ztube, and spacer. Not sure if this is contributing.

 

lol, when i first read the thread i thought you needed a dentist or was sharing an experience you had with them.

have you checked your tires?