SHW Performance left rear cross-drilled lightweight brake rotor for 2021 BMW M3 and 2021–2022 BMW M4 is a direct-fit replacement rotor in a cross-drilled, reduced-mass configuration. Intended for the left rear brake position, this rotor provides a vehicle-specific service option that follows the original fitment outline and mounts to the BMW M3/M4 rear left application.
SHW 2021 BMW M3 / 21-22 BMW M4 Left Rear Cross-Drilled Lightweight Brake Rotor (34208093729)