the kid I bought it off of, His father( who works for Catapiler ) and him( who works for Mazda as a mechanic) rebuilt it. He thought he fucked up something but it was just the turbo seals. Instead messing with it he bought a mazda and riced it out. My freind took the head off and told me it looks damn near brand new.The turbo I bought was off a 90 talon with low miles and very little shaft play. It spinnes very nicely.