Reviewed By Luis R (Dalton, GA) Reviewed for a 2008 GMC Sierra —9/12/2015 9:33 AM
Works as advertised , runs better whe its on V8 mode all the time, shifts smoother, very good product at a resonable price
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.