Reviewed By Mitchell A (WICHITA FALLS, TX) Reviewed for a 2010 Chevy Silverado —5/26/2016 3:43 AM
Completely satisfied with this product it had exceed my expectations my fuel mileage has increased 3.5 mpg
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.