Reviewed By Timothy C (Garden City, SC) Reviewed for a 2011 Chevy Colorado —8/19/2015 7:52 AM
Seems to work well. It is still a little early to be able to tell. Instalation was easy. I could tell a difference between the different types of tunes. The milage that I was getting on the highway was terrific to start with and I haven't had a chance to go on a road trip since changing the tune. Around town it is so hard to tell because of all the various conditions.
Reviewed By RICHARD K (AUBURN, WA) Reviewed for a 2013 GMC Sierra —4/10/2018 2:00 PM
Months of reading AA Forums and others, I went with predator p2, the instruction manual, was step by step, The down load took minutes to do from my pcm,I fully charged my battery prior to,And no power to anything else,I plugged in the P2, Followed directions and chose 87 oct performance tune,AFM OFF (YAAAAH), AND Diablo trans tune and speed limiter off,My gmc 5.3 now starts and runs better, Accelerates (no pause) with more power,Trans shifts are firm,(No soft or hunting shifts), Im happy.
