This is a replacement part that uses our Black Series material to boost stiffness over the original part by 18% to withstand increased loading seen by this position on the car. For a caster offset version please use PFF5-4001G.

This part fits the following models:
BMW
2 Series
F87 2 Series M2 (2016+)
3 Series
F80 M3 (2015+)
4 Series
F82 M4 (2015+)
F83 M4 (2015+)