I am getting ready to pull my new 44' toy hauler to South Dakota for a much needed vacation the last week of July and I have the option of using my daughters boyfriends Hypertech Three Stage Tuning system for this. My question is which should I put in the 35HP, 65HP or the 100HP? I am not going to be doing any other mods just this chip. I am starting from New Hampshire so there will be hills to start with, I don't want to do any damage but would like to boast my power and up the fuel mileage pulling this 18,000# Fifth Wheel trailer. Again this is just going to be for the trip out and back with us using my Harley Motorcycle converted to a Lehman Trike so there won't be any truck use out there as this is a motorcycle vacation. I know what you are thinking and I would only take the bike but the wife likes the comforts of a moving home on wheels after a days of riding.
So members what do you think will be my best option? I would like the chip to be programmable on the move but this one is a 5 minute down load for each different setting. Beggars can't be choosy!