It sounds like it is comming from the passanger door area but I cant seem to pin point the vibration sound and I could be wrong on the location. This is really bugging me. I have checked the intake at least 5 times and everything is screwed tight. It only happens just after getting into VTEC and does not happen for very long (maybe from 6,000 to 6,500 at the most). Also I hear a somewhat loud surge of air near redline (7,650 to 8,200, amost like a turbo that is spooling up or just spooled up kind of sound). FYI I dont have a turbo. Please any help would be great. Thanks