The R1 Concepts drilled-and-slotted black brake rotor for 1996–2003 BMW 525i (USA/Canada, rear left) is listed as a direct-replacement rotor for that wheel location. The description specifies a drilled and slotted surface and a black finish. This rotor is intended for rear left fitment on compatible 525i model years in the noted markets; confirm vehicle year and orientation before ordering for proper compatibility.
R1 96-03 BMW 525I (USA/Canada) Rear Left Drilled & Slotted Black Brake Rotor