DYNA III Electronic Ignition increases the high rpm coil energy storage by approximately 70%! The Dyna III allows the coils to build up to maximum current, and even at high rpm's, you get a more powerful consistent charge to the plugs for top operating efficiency. The sealed aluminum module is unaffected by dirt, moisture, oil or vibration. Dynatek is the performance leader for quality electronic products in the motorcycle industry. With the help of top racers and motorcycle builders around the world, Dynatek has worked to create the electronic products necessary to support the modern motorcycle.