The R1 Concepts drilled black brake rotor for 1999–2008 BMW 323i is specified for the front-left wheel and features a drilled face and black finish in the product listing. The description provides the model years and position. Install this rotor when servicing the front-left brake on compatible 1999–2008 323i vehicles; fitment is explicitly indicated by year and wheel location in the source.
R1 99-08 BMW 323i Front Left Drilled Black Brake Rotor