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MSD digital 6A ignition controllers great ignition systems get even better. And now you can update your ride with the digital circuitry of these powerhouses. It lowered the profile for a sleek look and routed the wiring out one side of the unit through a sealed and locked connector for easy installation with a clean neat look under your hood. Microprocessors updated circuits and efficient components control every firing to help the ignition make more power with less current draw each spark packs more than 135 milli joules of energy with up to 530 volts. Others strive where it succeeds join the proven win-win of fire to drive with unmistakable MSD technology at its best digital 6A ignition controllers.