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aFe Power Sprint Booster for BMW
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 X1 w/ A/T, X3 w/ A/T

Price is $321.00
Price: $320.9