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How do I change tunes, or power levels on a Gas GT device?

1. Make the same preparations and take the same precautions as when you initially installed the tune.
2. Choose Install Download from the Main Menu.
3. Follow the onscreen instructions.
4. Choose Change Vehicle Settings when you are prompted to choose between that option and “Return to Stock”.
5. Continue following the onscreen instructions until the GT indicates that the process is complete.