Thread: Loud noise at speed

I just got an 04 GTP and when i go over 80 there is a loud ringing noise (high Pitched) does anybody know what it is?

Might want to check the basics starting with the Supercharger, check oil, check for leaks, and also check the pulley. Also the bearings in the belt tensioner wheel could be going bad, I had this issue before but the sound would start at 60MPH. Hope this helps