*Peak gains are measured as the difference between the highest points of the two plots.
*Largest gains are measured as the largest gain at any single point between the two plots.
Results may vary. Power as tested on 2019 GTI DSG using these identical calibrations. Generally speaking, the 91 octane calibration has a richer fuel curve and a less aggressive ignition advance map to help compensate for 91 octane fuel and/or less than ideal atmospheric conditions. The map designed for 93 octane is the most aggressive.