Holden VL
G4 Plug-In ECU for the Holden VL.
Replace your existing Holden VL computer with a G4 Plug-In.
Engine:
- RB20E
- RB30E
- RB30ET
We strongly recommend that you fit an inlet air temp sensor for optimum running in all driving conditions.
Read more about the powerful G4 Plug-In Engine Management System.

