hey guys ive owned an r32gtst auto(unfortunatley) for about 2 years now and had a blown tranny, i got one from a wrecker as i am selling the car, after ui done that i found the turbo was seized and changed that, after that it wasnt running perfect but still alright, then that gearbox, goodbye (ekw have the worst parts) so i went and bought an r33gtst gearbox (again secondhand) and the gearbox seems fine, oil is nice and pinka nd everything, i put it in but my car runs incerdibly sluggish, takes off very slowly doesnt come on too boost as hard e.t.c, it has 145 kms on it and its going too one of my mates so i wanna fix this prob for him, wats your opinions, any help would be greatly appreciated???