The PERFORMANCE setting offers an aggressive throttle response which balances drivability and power. Stepping up to the SPORT setting offers quicker throttle response that delivers power much quicker than the factory settings, and really wakes up the power. The STREET setting greatly improves power delivery for improved drivability for everyday performance. The STOCK setting makes no changes to the throttle response. The MILEAGE setting steps power back modestly for a balance between economy and power. The HYPER-MILEAGE setting is a very aggressive reduction in power delivery compared to the factory settings to help squeeze the most out of your fuel mileage. These settings allow you to customize the power delivery to how you want it, and on properly equipped vehicles you can tailor these settings per drive mode.