Increase MPG
I have a 2014 GMC Sierra 2500HD with the 6.0 gas burner. I have been looking at computer programmers and air intakes. Has anyone done any of these mods and did it increase your MPG any?
Forum Discussion
I'm not into programers. #1 how many miles do you have to drive to offset the cost of the programmer. Is the gain in fuel economy enough?
