Sierra 1500 5.3L
Reviewed By Keneth S (Jonesville, LA) Reviewed for a
—12/23/2014 8:37 PM
Easy to use programs in minutes. I can tell A difference. I just program with the quick tunes
Reviewed By Timothy W (Oxnard, CA) Reviewed for a
—12/23/2014 2:23 PM
Works as advertised noticable power difference same milage as stock with performance 91 tune.
Reviewed By Viking P (Grand Rapids, MI) Reviewed for a
—12/23/2014 12:27 PM
The JET PCM not only improved power but also truck driveability. Initial acceleration from a stop and while moving greatly improved.