The Bilstein B8 Performance Plus series is a high-performance aftermarket shock absorber designed specifically to be paired with lowering springs. This 46mm Monotube gas-pressure shock delivers sporty handling with high level of comfort. Perfect for drivers seeking improved suspension dynamics and precision. Features: Monotube gas pressure technology, shortened high-performance shock for nearly every lowering spring set, improved safety and performance. Included in this package: 1x Rear Shock Absorber (Part Number: 24-027588).