Reviewed By George V (El Paso, TX) Reviewed for a 2008 Chevy Silverado —4/13/2018 7:01 AM
Ordered this after lifting my 2008 Silverado. It adjusted my speedometer and my fuel consumption from 12mpg to 16mpg... it'll eventually pay for itself
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.