Which Stage would I set my programmer on 1,2 or 3 to get better mpg and a little more power on my 03 2500 5.9. I have an AFE intake and a low restriction muffler. I have had it set for years but don't remember what stage when I went back to stock setting when my CP3 high pressure pump and injectors went out. I want to put hypertech back on since the truck is fixed but would like some input from some of you. It would be greatly appreciated.

 

My 6.7 rips on stage 1 and getting 19-20 mpg on the highway. Haven't tried stage 2 or 3

 

Thanks for info. Right now I have it on stage 1 and satsified with results. I just want to be as easy as possible on transmission