The Bilstein B12 11-16 BMW X3 / 15-16 X4 Front and Rear Suspension Kit is a complete suspension system designed to provide superior handling and stability for your BMW X3 or X4. This kit features Bilstein's monotube gas pressure technology, which provides superior damping ability and ride comfort. The kit includes front and rear shock absorbers with progressive rate coil springs, as well as front and rear stabilizer bars. The kit also includes all necessary mounting hardware for a quick and easy installation. With this kit, you'll get improved handling, stability, and ride comfort, all while maintaining a factory-like ride quality.