returned from a 2k mile 3 day trip to the desert and back and now at idle while in gear it seems that a faint belt type squeak is emanating from my stacks or the flwx pipe underneath. nothing is loose, all fluid levels are good. any ideas? i know this is very general, but i thought maybe its something others know about from experience. thanks

 

Probably the turbo chirping. My '99 with the straight pipe has a chirpy turbo sound.

 

ACTUALLY i just figured it out. its a combo of the turbo kinda chirpping and a little exhaust leak where my flex pipe bolts on for my stacks.