I have the SuperChips Tuner ... went with stage 1. Noticable power increase, but no improvement in fuel milage
while pulling the fiver. Like to old saying goes "the more horses you have ... the more hay you have to put in the barn". I've often wondered if those who claim fuel mileage increases
while pulling are quoting off the trucks computer or off their fuel reciepts.
Kansas
2005 2980RL
2000 F-350 Powerstroke dually
Banks 4" SS exhaust / Superchip Tuner
Pillar mount boost / pyro guages
coolant filter