The Edge A2 is an incredibly sophisticated device that monitors your vehicle's essential systems, including EGT, Turbo Boost Pressure, and Transmission Functions - Completely replacing the need for gauges. The A2 allows for on-the-fly power level changes, enables extra power levels, and features TOMTOM?? GPS navigation. The unit's large, color, touch screen display is capable of displaying EGT, Boost, Engine Temp, Engine Load, Transmission Slip, and true speed as well as a host of other parameters. The Edge A2 also offers the benefit of multiple safety features and performance testing. The Edge Juice/A2 is capable of dramatically improving your Cummins' driveablility, towing, mileage, and most importantly, POWER.