Dyna S Dual Fire 1970 & Later

The dyna s high performance ignition system, designed for harleys, is a complete self-contained electronic ignition system built with the latest state-of-the-art engineering.This is the same ignition used by top racers over the past 2 decades.The dyna s is completely housed behind the ignition cover and uses a magnetic rotor with the original spark advancer, so the factory advance curve is maintained.Not legal for use in california on pollution controlled vehicles - check local laws before installing.