I just rolled 77,000 miles on my 02 WRX and I am now getting a strange noise when I am on the throttle. Usually between 2500 and 3500 rpms I get a sort of humming/droning noise. As soon as I let off the throttle it goes away and as soon as I hit it again it comes back. My thought is it may be the bearing in the turbo going out. My engine mods, all of which have been on for well over 2 years now, are:

Bosal TwinDump Downpipe
Vishnu 321 Uppipe
Vishnu Crank Pulley
Zero/Sports Turbo Intake Pipe
A'Pexi N1 Catback

Any insight???

Thanks,

Ryan

not the dreaded crank pully....

not the dreaded crank pully....

Whats wrong with the crank pulley???