Immobiliser bypass unit CDI Chip Key Bypass CDI fits Vespa Piaggio ET4 125

immobilizer bypass unit cdi  125cc LEADER ACI603:

Replaces the Magneti Marelli ACI601, ACI602, ACI603 and ACI604.

orEFI Technology AC2i, AC3i, AC5i and AC8i.

This black one bypass is used for the air-cooled engine.