i have a mail order nelson tune and hptuners. if at all possible, i say get the nelson dyno tune AND hptuners. that's the best answer unfortunately. You probably could get close with hptuners alone. then just get on a dyno to tweek it.

 

I like Hypertech Programmer

 

I am still thinking about getting the HP Tuners as well. The thing that bugs me is I have no clue if I can get more out of my truck!?? Also, as most of you have described, I did not feel a HUGE power increase. Most of the difference that i felt was all in the drivetrain, shifting etc. I have a funny feeling that there is alot more left in there...................... Everyone talks about traction problems and with my mods I cant chirp the rear for anything, doesnt even feel like its close. I am attributing this to the difference in weigh distribution of my truck, Crew with the really short bed puts more weight over the rear......... I just dont know.

 

Yeah, Ive decided to go with the dyno tune