Well i know when i bought my 05 cummins i started to look for some power and everyones post always felt like i was reading a life story just to find out what they thought. Here is my experience with all the programmers and modules ive ran.

ill list them in order i used them.

Diablo sport predator- was great on fuel mileage...but well thats were great stopped power was decent, EGTs HIGH!, idled like crap.

Smarty Jr.- averaged about 22mpg down a little power was better than diablo and was actually pretty stout little module just out grew it quick.

Smarty Sr.- after reading all the hype i got it and was disappointed to say the least didnt seem to run as good as the jr.

Edge juice with attitude hot unlocked- This is where i thought it was going to stop for me power was great, i loved everything about it and thought it couldnt get any better.

TST powermax cr- found good deal on one so i got it and at first was disappointed once i started tuning .... WOW this thing will give you a harder kick then standing behind a horse. More power than any other and close to best mileage. only lacks a little down low.

 

Thanks for ur input. I found it useful and to the point.