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To recalibrate the computer for the new gears, we first had to take the tuner supplied with the FRPP Super Pack and use it to remove the supercharger-specific tune, replacing it with the stock tune. To do so, plug the tuner into the serial port under the dash and move the switch to the left. The tuner will display a yellow light until it has reflashed the computer with the stock tune. You will know when the task has been completed because the green light will illuminate. Once the stock tune is back in, you can custom tune the car like you normally would with an aftermarket tuner.