Provides More Power & Faster Starts Delivers Better Idle & Smoother Running Now With All New Housing & Digital Circuits Built-In 2-Step Rev Control (No RPM Modules) Higher Output Up To 135mj & 535 Volts 50 States Legal The new MSD 6AL-2 (Multiple Spark Discharge Ignition) is designed to improve the performance of daily drivers and weekend warrior vehicles. It features an all new housing, digital circuits for higher spark output and a built-in 2-step rev control for street/strip vehicles. It works on any vehicle with a 12 to 18 volt electrical system. MSD-6AL-2 can be triggered using breaker points, magnetic pickup or electronic amplifier outputs.