The R1 Concepts black drilled-and-slotted front-left brake rotor for 2004–2025 Scion FR-S is listed as a single replacement rotor for the front left wheel across those years. Described in the source as drilled & slotted with a black finish, this rotor is provided for the front left fitment on the specified FR-S applications.
R1 04-25 Scion FR-S Front Left Drilled & Slotted Black Brake Rotor