The Hondata Coil Pack Retrofit (CPR) allows the use of 'coil on plug' individual ignition coils on engines with distributor based ignition systems (D, B, F and H series Honda engines). It does this by replacing the stock coil and ignition with an electronic circuit which can drive igniter type individual ignition coils, such as used on later model Honda engines. A Hondata S300 system and US OBDI ECU are required.
The Hondata CPR comes with a wiring harness for your coil packs, a coil pack controller and fly leads for connecting to your distributor and ECU. The CPR is typically positioned next to the ECU inside the car.
Benefits
More spark energy than a single coil, allowing a larger plug gap and fewer misfires.
Individual coils are more durable and less likely to fail than the stock igniter and coil.
Additionally, the Coil Pack Retrofit can drive a CDI controller if desired. 
