Description
MSD MC-4 programmable ignition controls for motorcycles combine multiple spark discharge and digital computer accuracy into one compact ignition system. These MC-4’s can be programmed at the track, on the dyno, or wherever, with or without a computer. The supplied Pro-Data plus software gives the ability to program ignition timing curves. These MC-4 ignition boxes are for use with single or dual spark plugs per cylinder, and are 1, 2, or 4-cylinder selectable.