Which cars are the fastest with the LS4 motors? Project GTP u said u ran your SS in the 1/4 mile at 13.99 One of my friends has a grand prix gxp with a cold air intake an flowmaster exhaust and he said the fastest he ever ran it in the 1/4 was right around 14 secs flat. But then again he has 2 12's in his trunk. I assumed the gxps were the quickest but i could be wrong. Maybe the guy with the SS didnt want to hit full throttle because he was in the lane close to the curb an i dnt know how anyone elses roads are where theyre from but up here the right lanes always more bumpy than the left lane. He probably didnt wanna chance losin control at higher speeds but at the same time didnt want to accept a lost so he kept racing but not steppin on it....
