Spring Booster BMW 01-15 5/6/7/M5/M6-Series (A/T)

Simple Installation: For vehicles with electronic control (ETC) systems, or drive by wire, this device plugs into the OE connector located behind the accelerator pedal. It is a simple installation, requiring no cutting of any wires. Three Position Settings: Off (no light): Device is not active and vehicle is stock. Sport (Green): Device is active, throttle response and acceleration are improved over the mild setting. Race (Red): Device is active, throttle response and acceleration are improved over the mild setting. Better Drivability: In addition to the increased throttle response and the improved acceleration, there is also a noticeable difference in the transmission shifts (for vehicles equipped with Automatic transmissions). This product fits the following vehicles: 2001-2014 5-Series w/ A/T, 2004-2014 6-Series w/ A/T, 2001-2014 7-Series w/ A/T, 2006-2015 M5 w/ A/T , 2006-2015 M6 w/ A/T