There is no drone from idle to about 3000RPM. From 3000-3500, slight drone, not noticable when the radio is on. from 3500-4300, heavy drone and resonance- the type of drone where i cant even hear my friend in the passenger seat. From 4300-redline, it sounds just evil. perfect blend of growl and shreik, almost like a tuned supercharger at high revs. definitely turns heads and clears cars in front of you on the highway.

I'll try to take a video of it at high revs, and also put the camera in the cabin so you can hear the resonance.