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
Tuners and cotton air filters that let more dirt through will not gain you any mpg that will make up for the cost of the add ons. A driving style change will get you the most gains.
