Digital Pro Shift Systems (DPSS) are programmable and do not require a separate module or pills. They are available in three levels. The gauge-style coordinates with other Auto Meter series, such as Cobalt and NV. The black or silver tube-style has a unique A.I.M. direct line-of-sight mounting bracket, enabling left and right rotation and all-direction angle adjustment. Both are compatible with 0.5 to 6 pulses per revolution, meaning they work with most engines up to 12 cylinders.