The Bilstein B16 (PSS10) suspension kit is a race-inspired system providing adjustable damping and ride height for ultimate street and track performance. Features include 10-stage manual damping adjustment (rebound and compression) and threaded body for precise height tuning. Kit contents: 2x Front Coilovers (Art: 35-135251), 2x Rear Dampers (Art: 24-135265), 2x Front Main Springs, 2x Rear Main Springs, 2x Rear Height Adjusters, and Adjustment Wrenches. Specification: Front Lowering: 30-50mm; Rear Lowering: 30-50mm. Specifically designed for models with a 55mm front strut diameter.