If you are only after 280-300kw@wheels, go GT-SS or Garrett -7's. Normal PFC, std afm's, std injectors, std air box, std fuel pump, adj. cam gears, std dumps, front pipes and decent exhaust. Get a good tuner and it will drive/start/idle like stock (surprise!!), but go like 300kw should. IMO, one of the best street set-ups, and only requires an ecu and exhaust change and she will pass epa..