Coilover suspension is a complete integrated spring-and-shock assembly that replaces your Subaru's existing conventional spring and shock. Most coilovers that we sell feature adjustable ride height via a threaded shock body, and adjustable damping. Some of the fancier coilovers feature two-way adjustable damping (rebound and compression adjustable independently. Many of our coilovers feature pillow-ball upper strut mounts in the front for precise location of the top of the shock. Pillow-ball upper mounts also allow for camber adjustment at the strut top.