The AST 5100 Clubracing coilover for 2006–2008 BMW Z4 M (E85/E86) is a monotube, 1-way adjustable suspension system that blends track capability with daily drivability. It offers rebound and ride-height adjustment, camber-adjustable front top mounts where applicable, solid rear mounts, high-performance springs and rebuildable dampers for repeatable, tunable handling.
AST 06-08 BMW Z4 M Coupe/Convertible - E85/E86 5100 Comp Series Coilovers