so i was drining my car for a bit the other day and i guess the new turbo is broke in because it was driving amazing. then.... another stange squealing noise. at first i thought it might be ther turbo rubbing the housing but then i took the intake pipe off and it was fine. the noise only happens wile im driving not at idle and only at sutain speeds. the sound seams to be coming from behind me wile i drive.

also, i replaced my front rotors and pads and the read brakes have not been changed. the rear rotors i believe are a bit warped, so ould this be the problem?

 

could be something rubbing on your rear brakes.