The R1 Concepts drilled brake rotor is a black, drilled replacement rotor for the rear left of 1978–1981 Pontiac Firebird, intended to restore braking function and match factory fitment. Its drilled face provides a refreshed appearance and a practical rotor option for routine repair or restoration, appropriate for technicians and experienced DIY installers maintaining original-style brakes.

R1 78-81 Pontiac Firebird Rear Left Drilled Black Brake Rotor