The Alcon Pro‑System front rotor assemblies for Porsche 997 GT3 Cup are supplied as a pair and intended as direct replacements for the cup car front braking system. These assemblies match the factory cup rotor form and fit, providing correct mounting and rotor dimensions to return braking performance and serviceability for Porsche 997 GT3 Cup front axle setups.
Alcon Pro-System Porsche 997 GT3 Cup Front Rotor Assemblies - Pair