Rick's Motorsport Electrics Yamaha CDI Box 15-409

Includes duplicator circuits, altered ignition advance curves and increased rpm redline

Enhance overall performance when installing a high-flow jet kit

Criteria for determining performance enhancements include type of engine (2- or 4-stroke) and if the machine has a pulse-generated ignition or battery-supplied ignition

Can also be used to replace defective CDI box on stock machines

Increase the spark or multiply it per application