Originally Posted by RS500/364
GT30 spins up quicker because it is a desiel turbo
Ahmed said they can make a T4 less laggy than my T34.63
Ask your tunner not this if he dont like it he will tell you why and what to do !!
Ahmed worked wonders on my car, the turbo comes in so much earlier and is loads nicer to drive.
Staffi i would talk to your mapper and tell him what you want from it from eg. power, drivablitiy, lag, how much you will track it etc. They should then be able to recomend what turbo to use.