:) predator p/n u7194. rev.V.9r14 2009 chevy 4x4 5.3 flex fuel .
Mods: cold air intake, flow-thru catback ext duals.
I installed the 87 octane tune on Monday it smoothed out the motor and better low to mid range torque. Kudos on the program. :D
What I need to about the 87 octane tune is:
1] Did ...