Originally Posted by Jumpin800agl

I would think that unless you are going to build the motor to push more psi the stage 4 might be overkill for you. Without the added boost you may not get the power curve that you are looking for, end result the car not "feeling as fast" as you think it should. I suggest talking over your options with Z1/GTM to get best advice. Take a realistic look at what your "needs" are and plan ahead of time to achieve that. It is so easy to just blow money on parts that may or may not be overkill for your intended purpose.