Not sure which 2006 GMC Sierra Performance Chips & Programmers are right for you? We have over 7429 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Looks like a quality product. Easy to use for factory settings but I could use help with changing settings for better fuel and power settings. You should have some examples of what to change. I don't want damage anything buy randomly changing things." —Ronald D from Martinsburg, WV bought a Hypertech Max Energy Programmer for a 2006 GMC Sierra.