Well, a turbo will produce more power 95% of the time, especially a TT. Actually turbos have been in development more than superchargers. The first forced-induction production vehicle had a turbo on it back in... ahh hell i can't remember how long ago.
mmk don't listen to the n00b everybody thats an ass load of work and you need a motor build up for the turbo... a super charger is much better for our car, seein how there's no turbo kit made for our cars and you don't hafta rebuild the motor to install a SC
Who says you have to build the motor up for a Turbo? A Turbo @7psi puts the same stress on the engine as a SC @7psi AND makes more power if done right. The main problem here is that there are no quality turbo kits available and therefore it is cost prohibitive for those who can't build a kit themselves or know someone who can.