Thanks. All good info.dpjedi said:No, the hand-held tuner (whether it be the XCalibrator I or II, or Predator) locks itself to your vehicle (via the VIN) once a non-factory tune is installed to your car. The only way to unlock it (to either sell it or use it on another vehicle) is to return your car to the stock tune. No way around it It's a great tool to have for gears, different size rear tires, fan speeds, etc.