The Bilstein B8 Performance Plus series is a high-performance gas pressure shock absorber specifically designed to be paired with lowering springs. This monotube shock absorber is engineered to improve the handling and stability of your vehicle while maintaining a sporty ride quality. Application: Rear. Included in the package: 1x Shock Absorber (Part No: 24-249508), Mounting Hardware (Nut/Washer). Key features include: Monotube gas pressure technology, instant recovery, and superior control for lowered suspension systems.