Universal Parts GY6 Performance CDI - AC Ignition 4 Hiboy S2 Hiboy S2 Pro

Hiboy S2 Hiboy S2 Pro Hiboy KS4 Hiboy KS4 Pro

Optimized variator travel for better takeoff and increased top speed

Custom Rubber Wiring Boot

this version features an integrated high-grip plastic handle

Universal Parts GY6 Performance CDI - AC Ignition 4 Hiboy S2 Hiboy S2 ProEliminate the factory rev limiter and let your engine reach its full potential with the Universal Parts GY6 Performance Racing CDI. Designed specifically for AC fired GY6 50cc, 125cc, and 150cc engines, this unit removes the electronic RPM ceiling and features a re mapped ignition advance curve for sharper throttle response, improved acceleration, and a potential top speed increase of 510 MPH on most stock and modified machines. Housed in a gold