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
Hannibal wrote:It never ceases to amaze me how everyone's in a race to get to the next red light.
Drive like you have no brakes.
