What is the best programmers on the market? I was looking at the Hypertech but I don't really know alot about any of them.

honestly, you you get a custom tune for the price of a programer these days. companies like nelsons tune, or wait4metune are mail orders. you call them, tell them what you have or what you want to do, they'll send you a new pcm, install it and send them your old one. they have free updates also if you end up doing anymore mods to the engine. best money spent there instead of the handheld programers.

i have a hypertech on a 05 1500 5.3 got it when the truck had about 2k now has 21k change the tire size, shift point,changed to run mid grade gas. no problems at all

I had the Hypertech for my 02 and loved it. I still need to get one for my 04.

I would say your best choice is an HP Tuner.

honestly, you you get a custom tune for the price of a programer these days. companies like nelsons tune, or wait4metune are mail orders. you call them, tell them what you have or what you want to do, they'll send you a new pcm, install it and send them your old one. they have free updates also if you end up doing anymore mods to the engine. best money spent there instead of the handheld programers.

Cool info, thanks.

Have some tunning to do to the D/Max. :c2:

From what I have read on GMtrucks.com's forums, is that the Diablo Predator is the better hand-held. They also like a guy named Westings (I think) that does custom tunes. He does as droppedgmc says, will give you lifetime updates.

What is good about the Predator is that, if your rig is still under warranty, it saves the factory settings in the tool. If you take it in for warranty work, put the factory tune back in.

You can tweak a lot of settings, from what I understand.

I am planning on getting one for the 6.0 Sub, when I get an extra 500 bills laying around.