AEMs CDI Pencil coils are designed for converting your distributed ignition system to a coil-on-plug (COP) system using either a CDI module or 4-Channel Coil Driver. Users can combine CDI Pencil Coils with a CDI module to replace their factory smart coils or combine a CDI AEM Engine Position Module and stand-alone programmable engine management system to convert from distributed ignition to COP.
