i was looking at lethal performance's website and saw the whipple kit for the truck, i have an 07 fx2. it claims 475/39x, has anyone done this yet? i am looking to find out if all of the money to add the power actually makes this beast move or not. additionally i would also do full exhaust to help this out and i was wondering if the elctronic throttle stutter is still noticeable after the tune? i bought a predator for it immediately and i could feel a little more response but i am a tire squeeler so i want more..lol.. thanks guys.
