The pivot pin, located in your BMW's clutch fork, serves a very important function. Incredibly, the stock part is made from brittle plastic, which begins squeaking with each press of the pedal before eventually failing - requiring a transmission-out service to replace it.
Designed in-house at ECS Tuning, this upgraded bronze bushing will not only be more durable than the stock part, but it will also provide a smoother clutch feel. If you are planning a transmission swap, clutch replacement, or replacing a broken pivot pin, don't overlook this inexpensive but crucial upgrade.