DYNATEK DYNA 3000 Ignition Module gives you the ability to customize your Honda Shadow 1100's ignition timing for optimal performance. With ten built-in advance curves, you can choose the one that best suits your engine's needs. The ignition retard feature is perfect for blower or nitrous applications, and the status LED provides diagnostic information about the operation of your ignition. Whether you're looking to improve your bike's performance or simply want to keep it running at its best, the DYNATEK DYNA 3000 Ignition Module is a great choice.