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Stage 1 - 170kw

Stage 1 for the Holden SRI Turbo involves reprogramming the factory ECU with the custom flashing software.
After the Astra Turbo 2lt 4 cylinder engine has been flashed tuned, it will adjust the engine timing, boost control and fuel maps that will allow gains in performance and fuel economy across the rev range. Expected gains are between 20 to 25 kW across the rev range.

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