This is a new Genuine BMW rear stabilizer link (known as a rear sway bar link) for the F87 M2, F80 M3 sedan (2015-2018), F82 M4 Coupe (2015-2020), and the F83 M4 convertible (2015-2020). This link connects rear sway bar to the trailing arm on these vehicles.
Do the job right! We recommend replacing the M10 locking nuts (33326768884) , 2 per side, when installing new links.
The rear sway bar link connects the sway bar (anti roll bar) to the rest of the suspension. As the suspension and the sway bar go through their motions the link rotates and twists. On cars that get lowered suspensions or track use the ball joints in the link get a real workout. If you hear clunking from the rear suspension, especially over bumps and potholes, the rear links should be evaluated.
BMW Fitments:
2 Series
F87 (2016-2021) > M2 Competition S55 (2019+)
F87 (2016-2021) > M2 N55 (2016-2018)
3 Series
F80 (2015-2018) > M3 (2015-2018)
4 Series
F82 / F83 (2015-2020) > M4 (2015-2020)
F82 / F83 (2015-2020) > M4 GTS