2010 GMC 4x4
Reviewed By Mike L (Tulsa, OK) Reviewed for a 2008 GMC C/K 1500 —4/28/2011 9:04 PM
I can not belive the improvment. It really woke up the truck. It makes the 6 speed trans shift at wide open throttle instead of a 4 sec delay. I lined it up aganst my wifes 2010 Avalanche and it pulled it by 4 cars by 85 MPH. A great product well worth the money.
You can feel the change in performance,
Reviewed By Richard L (Fayetteville, NC) Reviewed for a 1997 GMC C/K 1500 —4/8/2009 10:44 AM
The Flashpaq tuner was very easy to use, clear instructions. Ive tried all the settings so far except the towing setting and there is with out a doubt a difference in performance.