You will like Tony's tunes. I have a 4 pos chip from Tony and just love it. I have the high idle, econo, tow, and extreme. Most of the time I haul my fifth wheel on econo mode. When I hit some steep hills, I switch over to the tow mode. I set the cruise control and the chip does the rest. I am pulling 20,000 lbs with truck and trailer and never have wanted for extra power.