i annnihilated a 5.9 jeep late last night racing down a highway on ramp. we were side by side (in two turn lanes waiting) and i took the regular on ramp and he took the car pool lane and i beat him by forever (like three or four lengths by the time we were going 65 or 70 at the bottom). just letting ya know! btw- those things are fast for a stock truck aren't they! this one was stock but with sort of a fart can exhaust.