ok i wanna turbo my d16y8 and i found a junkyard turbo on a first gen DSM and i was wondering how i can tell if the turbo is bad or good still.. i knew the girl who owned it before but she blew a rod and just sold it to the junkyard and the turbo worked good then but that was a while back and its just been sitting there. if the turbo is good, how much should i expect to pay? also what exhaust mani do you recommend?