The Alcon Pro‑System replacement rotor for Porsche 991 GT3 Cup is a right‑front PFC replacement sized at 3802mm, made as a direct replacement for cup car brake assemblies. It restores proper rotor diameter and mounting on the right front corner, matching factory cup specifications to maintain braking geometry for Porsche 991 GT3 Cup applications.
Alcon Pro-System Porsche 991 GT3 Cup 3802mm PFC Replacement Rotor - Right Front