what is a good programmer for a 2004 6.0 denali? I am thinking about getting this for my father for chrismas but im not sure which one to get or which one will work

Thanks Guys

i have a predator and it works as advertised. some will say to buy a custom tune, but the only thing i didnt like that was anytime i wanted something changed id have to ship it back to them. predator is good because they can email you the tunes and you just download them. good luck

i had a hypertech on my 5.3l and worked well. noticed little to no power increase with reg gas but on premium it was noticeable, probably will add more being a 6.0.

I got one for sale. Should fit 2004-2005 6.0L HO motor. Part number is 30022. This one came off of my friend's 2005 Sierra Denali. Unlocked and ready to go.