a super charger takes away power thats y a turbo can make more with less psi, i dont know if the supercharger is faster because it is limited with the rpm of the motor, a super charger is better for v6, v8. and for a good supercharger is around 2gs and up the best is jackson. personaly i would go with a turbo because i can always change it for a lager or smaller turbo without much trouble, but if the blower goes on a supercharge u will end up gettin a new supercharger kit