Bolt on a power increase with this digital 'Power Advance' CDI unit, developed and manufactured by Daytona. Continually varying the ignition timing curve with an accurate digital system that delivers the spark at the optimum BTDC throughout the engine rev range allows your engine to give it's very best performance, and of all the tuning goodies you can buy, this is surely the most important! Delivers a perfect spark at the optimum moment Bolt on power increase Increased and flattened torque curve