CF hoods add weight in our cars. S2k hoods weigh 14 lbs stock anyways, so there are no weight savings. Fenders may give you 2-3 lbs each and trunk saves a lot along w/ the doors, but they haven't made rear quarter panels yet.

IF your car has enough power, weight savings shouldn't be your key source to speed.

This S looks clean, btw. I need to get my paint looking like that.