The R1 Concepts slotted black brake rotor for 2003–2008 BMW Z4 (rear left) is a direct-fit replacement rotor offered for the specified wheel position and model years. The catalog description specifies a slotted surface and black coating; this unit is intended for scheduled rotor replacement or brake maintenance on those Z4 models. Make sure to select the correct left/right rear unit when ordering.
R1 03-08 BMW Z4 Rear Left Slotted Black Brake Rotor