Stage 1 for the VT,VX,VY Holden Commodore involves reprogramming the factory ECU with Unichip software.
The unichip allows the 6 cylinder engine control over the engine timing and fuel maps that will allow gains in performance and fuel economy across the rev range. Expected gains are between 15 to 25 kW depending on vehicle model.

Stage 2 for the VT,VX,VY Holden Commodore involves reprogramming the factory ECU with Unichip software.
The unichip allows the 6 cylinder engine control over the engine timing and fuel maps that will allow gains in performance and fuel economy across the rev range.

Expected gains are between 25 to 35 kW from standard.