Edge Products 85100 Evolution CS Programmer
The Evolution CS is an in-cab controller, monitor, and digital gauge display for your diesel powered truck  . This power programmer maximizes performance in a variety of ways. Simply plug in to the OBDII (diagnostic) port under the dash and select a program level to re-program your truck's computer. With a full color, high resolution 2.4 inch button controlled screen monitoring your vital engine information is easy and clear.