Reviewed By Jerry G (Loveland, CO) Reviewed for a 2013 GMC Sierra —8/19/2016 6:57 AM
This programmer seems to add just that little extra I was looking for I like the ability to try different combos and save them
Reviewed By Timothy O (DAYTON, TX) Reviewed for a 2013 GMC Sierra —3/12/2016 4:39 AM
Have a 2013 Sierra crew cab 4x4, it ran good but with the Superchips programmer it now runs great! When I step on it the truck almost jumps. Maybe a slight boost in MPG. Highly recommend if you're looking for a performance boost.