yeah i got a g-tech. from my friends dad down the street from me who owns a 2005 cadillac cts -v that he supercharged got new headers ,heads and exhaust and a superchip tuner, 650+ horsepower( it hauls some major a$$ ) :shock: :hail2: well our best run is 6.8 (thats with me in the car (100 lbs)...