The original Front Radius Arm Bushes, or Front Control Arm Bushes on BMW’s F2X 1/2 Series and F3X 3/4 Series 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.

This variation includes caster adjustment for +/- 0.75° of offset which can be used to improve steering feel and improved camber during steering.

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

Instructions found here.