Reviewed By Ron J (Smyrna, TN) Reviewed for a 2008 GMC Sierra —2/1/2017 9:22 AM
This device removed control of my vehicle from GMC to myself......
Reviewed By Bobby S (Bulverde, TX) Reviewed for a 2008 GMC Sierra —1/13/2017 5:56 AM
Easy to install and you can certainly feel a difference in torque/power. Easy to install and the extra gauges are neat. The only issue I am having is that when on the highest setting and I run wide open it makes my truck ping a little. I'm gonna run a few more tanks of premium fuel through the truck then investigate further. I will purchase this product again for my future vehicles.
Reviewed By Jeffrey F (Schenectady, NY) Reviewed for a 2008 GMC Sierra —8/28/2014 12:54 PM
Fast shipping. Excellent value. Only issue I had was having to update the programmer new out of the box? Otherwise easy install. Using the econ setting so I don't necessarily feel a performance gain but hoping for better fuel mileage. Only programmer I use is Hypertech.