The DSL system allows the differential to operate with minimal friction when no traction is applied, providing a freer differential action. Under acceleration, the balls move into the narrower sections of the spur gear channels, progressively restricting differential movement and delivering traction close to that of a fully locked differential.

The set includes two spur gears with different DSL effects, allowing the user to choose the desired level of differential locking and tune the system to suit different track conditions and driving styles