I bought it in a place that sells all kind of motors and parts and stuff, but not even they knew what they had, they thought it was a SE-R one, then they said B15, then said P11... I bought it for like $300, dunno the year but I do know its a P11/B15 one with viscus LSD, I hope its the right one and I dont brake 3rd when I tune in "high" boost...