Reviewed By Michael R (BOKOSHE, OK) Reviewed for a 2013 GMC Sierra —8/9/2013 9:23 PM
Easy to program and the options are awesome! There are a lot of different options available and it only takes about 15 minutes to program everything you want. The best thing is you can remove the speed limiter. I have gained about 3-4 mpg on 89 octane. I'm going to program it for 91 and see how it goes. This is well worth the price!