seethrough
Member
I am curious how these trucks would respond to mods . It would nice to get at least a little more performance out of them.
I have a 2011 Express with a ProCharger and it is a great improvement. It is still getting some bugs worked out but only because it was the first truck with the ProCharger and there was no way to crack the PCM encryption when it was installed. They should be much better now since the tune comes with the kits.