I have a polished SN93 i was wondering how can i tell if it was upgraded with the better impeller..The car is apart right now but before i took it off the road i saw like 6 psi at about 4500 or so rpm...Also how do you drain the old ATF ?...how many miles does the oil need to be changed?....Oh yeah im going with a powerpipe from UPR is anyone using one?...did you see any boost increase?...thanks for any help....:)
Bookmarks