Edge evolution cs programmer for Chevy and ford v8 trucks. I used this on my 2013 Silverado 5.3 and a 2008 Yukon Denali 6.2 and worked awesome for both. Can read and clear dtc, has 4 power settings, removes speed limiter, adjust speedo for tire size and gear ratio. Also has can track performance like 1/4 mile times. Open to offers. I have a ram now so I dont need anymore