The R1 Concepts drilled brake rotor is a direct-fit rear-left replacement for 2015–2021 Ford Mustang applications, finished in black with a drilled braking surface. It functions as a replacement rotor to maintain consistent braking feel and to fit original mounting hardware. Provided for the rear left location, this drilled, black rotor offers straightforward swap-in suitability and a subtle visual enhancement for compatible Mustang models.

R1 15-21 Ford Mustang Rear Left Drilled Black Brake Rotor