The R1 Concepts drilled-and-slotted brake rotor for 1977–1983 BMW 320i (USA/Canada) (front left) is a black rotor listed for that front corner across the stated years. The product description identifies the drilled and slotted braking face. Install this rotor when replacing the front left brake rotor on applicable 1977–1983 BMW 320i USA/Canada models, checking fitment before purchase.
R1 77-83 BMW 320I (USA/Canada) Front Left Drilled & Slotted Black Brake Rotor