Replacing the factory shock controller, the DSC Sport V4 is a state-of-the-art user definable suspension controller that fully interfaces with the factory dash display and controls. The V4 Controller features velocity calculations as well as brake pressure, g-force, acceleration, steering, speed (mph), and full individual shock calibration tables. Digitally tune the chassis just as you would the engine! Tune more grip into the tire, while tuning a more compliant ride for the street. The DSC Sport V4 Controller is equally at home as a daily driver or full-time track setup.