BMW F87 M2 / F80 M3 / F82 M4 Radius Arm to Chassis Bushings - Caster Adjustable

These are replacement bushings that use our Black Series material to boost stiffness over the original part by 18% to withstand increased loading seen by this position on the car. PFF5-4001G provides 5.5mm of caster adjustability to provide +/- 0.5° caster offset for improved steering feel. Additional caster will also create additional negative camber, giving improved tire contact with the road under heavy cornering. For a non-adjustable version of these bushings please use PFF5-4001.