Available Now! An ignition made for the 21st century: The MC4 Digital Motorcycle Ignition. Our engineers have taken the best of both worlds: Multiple Spark Discharge, and digital computer accuracy and put them into one compact ignition system. You'll be able to program the MC4 at the track, on the dyno, where ever, with or without a computer! It's what you've been waiting for - the ability to program ignition timing curves to suit your engine's needs with the supplied Pro-Data Plus software