Ok, I definitely see where both of you are coming from, but the point i like the most is that is does indeed increase the value of your car and another HUGE plus would be that i do not have to refill my bottle! So since i am aiming for 500+rwhp, I would use the A & A supercharger setup. I would believe that you mean the procharger package, but would i go with the p1sc or the d1sc? I know the d1sc is a more powerful package but would it hurt to go bigger and then one day upgrade to it? Also, is there any other modifications i could do to the car after its supercharged? For instance, headers, cams, bigger throttle body, any other mods that will help out? What about FM on the procharger.......thanks so much guys!