AEM’s 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.

• Convert from distributed ignition to Coil On Plug!
• Increases spark energy – ideal for high boost, high RPM and high compression engines
• Must be used with CDI module or Four Channel Coil Driver (two-wire CDI/Igniter compatible coil)
• Compatible with all standard automotive spark plugs (including threaded tip style)
• CDI Pencil Coil Kits include pencil coil(s), connector pin(s), pin lock(s) and weather seals