Bilstein B8 Performance Plus (29-256402) is a high-performance Monotube gas pressure shock absorber specifically designed to be paired with lowering springs. It provides sporty handling with a high level of comfort for drivers seeking improved vehicle dynamics. This unit is for the Front Left (Driver Side) position. Key features: Monotube gas pressure technology, instant response, consistent performance under load, and precise handling. Package contents: 1x Front Left Shock Absorber (29-256402), 1x Mounting Nut.