The new aFe Pedal 2 Metal App is designed to increase your throttle response & drivability. Fully adjustable with 5 setting (Economy, Stock, Street, Performance, & Race) & customizable with our Pedal 2 Metal Bluetooth app. Pedal 2 Metal is complete with 5 settings; economy, stock, street performance, race with Sensitivity adjustments within each setting. The Economy setting reduces throttle response to help save fuel. Stock will take it back to your vehicles normal settings. The street setting slightly increases throttle response for daily driving. Performance will increase the throttle response for best drivability. And the race setting is the max increased throttle response for best performance. In addition, this Throttle Master is equipped with two special modes: Valet & Security. Valet limits the maximum throttle to reduce the acceleration of the vehicle.