The original Front Radius Arm Bushes, or Front Control Arm Bushes on BMW’s F87 M2, F87 M2C/M2CS, F80 M3 and F82/F83 M4 models are a known point of failure especially when driven hard. Powerflex developed this polyurethane replacement – this minimises differential deflection, delivering more consistent power delivery and response while offering compliance for road and track comfort.

Part number 1 on diagram. Priced per vehicle set of two. Covered under Powerflex’s lifetime warranty.

Instructions found here.