It gets all its info from the oem sensors. If you got the system with the pda it would have come with an egt probe. Before you do this stuff I would get an EGT gage first.
Other than that its just plug and play.
BTW

It gets all its info from the oem sensors. If you got the system with the pda it would have come with an egt probe. Before you do this stuff I would get an EGT gage first.I have an '03 2500 4x4 w/ the non-H.O. motor, I think it is 250hp. Last year I bought a used banks six gun tuner and have not put it on yet, mainly because I wasn't going to try to put it on w/out cold air intake and exhaust. Well, I am planning on putting on a DIY BHAF and cutting the muffler off this weekend. So, I guess my question is I am not sure if I have everything I need to install the six gun tuner. It did come with the full harness, switch and tuner(cpu), but their were no sensors like boost and pyro. I am not sure exactly what is supposed to come with. Any opinions, suggestions, or tips will be greatly appreciated.
Thanks,
FRH