I have an 09 GMC Sierra 1500 with a 2012 5.3 Vortec. I am looking for the best tuner/programmer for my truck. It's about 95% stock. It's had the AFD/DOD deleted I believe along with a flow master put on it. I plan on keeping it basically stock for now except for this programmer. Can anyone help me find a good one?

 

I ran a programmer back in 05... Just get a professional tune.. You'll thank me later! Where are you located??

 

HP Tuners or EFI live if you want to learn to tune it yourself.

I own HP Tuners myself.

Otherwise take it to be tuned somewhere if you don't wish to learn the software.

 

I've always been a proponent of custom tunes, but I'd trust a programmer over some of these laptop-wielding clowns running around now...

 

I have an autocal from Black Bear Performance one of our site sponsers and have had nothing but good things from them! If you eventually want to get into tuning yourself you can buy EFI live and have a good base line tune to start with.