The Trinity is one of the most advanced devices of its kind, featuring full Reflash/Reprogram capability, Advanced Data Acquisition, and Customizable Gauges-- all displayed and controlled on a color touch screen and housed in a slim, custom-styled, easy to use device. As our flagship device, it is the only single handheld device on the market that comes PRELOADED with tunes for gasoline and diesel vehicles from Ford, GM, and Dodge, all under one part number!* The Trinitys evolution has been an interesting one: nearly all of its advancements and upgrades have been through changes to software without requiring physical changes to the hardware of the device itself. This powerful and versatile platform means a Trinity that was purchased on the products debut at the beginning of 2009 can be updated to have all the available adjustment and tuning capability of a brand new one. In addition to the extensive tuning support, its loaded with other features like the programmable shift lights, gauge display, virtual drag strip, and data logging. Combine all this with full support for custom tuning in gasoline, and it could be the last tuner youll ever need for your vehicle!