I have a 2018 GMC Sierra 5.3 6sp. The only mods done to the truck right now is intake, 2pc driveshaft and cat back exhaust. I had a diablo predator hand held tuner and I really liked the performance tune, I could tell the difference from stock. I decided to upgrade to HP Tuners because I want to convert the truck to flex fuel and some other stuff that will come in the future. I am hoping to learn as much as I can about HP Tuners. I have watched tons of videos and read until my eyes bleed.
The reason for this post was to ask if anyone had a good safe tune for my truck, so I can learn from it, but also gain some performance back. By reverting the truck back to stock tune to install hp tuners, it feels slow as crap. I searched the forums and didn't find any tunes for it. I did read I need to turn off DOD/AFM, but that was about it. Any help would be greatly appreciated. If you don't have a tune and just have suggestions that would be great to! As of right now the only thing on my to-do list is DOD:disable.