http://www.atxdubs.com/~puredrive/me...s4evo_0001.wmv

Watch the link. S4 = Chip, intake, DV's, TBE /// Evo = TBE (UNTUNED).

I don't want to answer all your newb questions, but the Evo is the most dominating sport compact car in the world, and you will find out only over time.