The R1 Concepts drilled-and-slotted black brake rotor for 2004–2008 Mazda RX-8 front left is a replacement rotor supplying a drilled-and-slotted braking surface and a black finish for that wheel location. Its open surface pattern is intended to aid heat dissipation and channel debris and gases away from pad contact for steadier braking, and it matches the RX-8 years and side listed as a direct replacement.
R1 04-08 Mazda RX-8 Front Left Drilled & Slotted Black Brake Rotor