I have an 03 Sierra, 2500 HD, with about 97,000 miles on it. I am only averaging about 12 mpg and would like to try and get more. What is the best programmer to accomplish this? I also need to recalibrate my speedomiter due to an 8" lift and 35" tires. Help!
I have a Hypertech on my LB7 and I like it. Not the most power and you can't check balance rates, but you can correct for tire size and it really wakes up the truck. I haven't had it on the truck very long, but there are lots of posts on here with guys putting them on Level 3 and just forgetting about them. That's what I did, and it makes the truck run similar to a LBZ.
I've had a Predator on my truck for the last couple weeks and love it. You can check balance rates, change tire sizes, increase the max speed limit, and tune 40,65,85, or 120hp. I'd get one again if I had to start over.
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