buck_n_duckExplorerMay 01, 2014Increase MPGI 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?
dodge_guyExplorer IIMay 05, 2014I`m running a 5 Star SCT programmer. I gained .5 mpg towing. yes it cost me $400 for the tuner, but the towing ability was also greatly improved!!!I`ve also heard good things about Black Bear for GM gas trucks!