Attitude in-cab controller:

The new in-cab controller combines sleek new engineering with cutting edge technology to provide state of the art performance in adjusting levels, reading EGT and boost, and monitoring transmission slippage. With the addition of the controller, there will no longer be a need for gauges. With the backlit LCD display screen, EGT Temperatures and boost readings will be displayed for easy and clear reading. With the push of the mode button, you can switch power levels and have adjustability on the fly.

A must if you are towing heavy loads.