Power Commander V Ignition Module - YamahaCaracteristicas: Connect to the ignition coils through an intermediate harness connection or directly to the coil connectors; no cutting or splicing of wires is required Allow user to advance or retard the ignition curve based on throttle position and rpm, and to tune each cylinder individually Direct coil driver technology allows a high degree of flexibility in timing adjustments Ignition module connects to PC V USB via a built in expansion port link