PFC Front OE Slotted Rotor - Left - Porsche 991 Cup, Cayman GT4 Clubsport

• 380x32mm Disc with a 60mm disc face.
• High Carbon Alloy with copper and molybdenum for high temperature strength and durability.
• Vanes turned OD and ID for balance to reduce thermal warping and vibration.
• Runout less than .001 inches, reducing Pulsation and Vibration.
• Thickness variation less than .0003 inches reduces Pulsation and Vibration.
• 47 or more vanes for superior thermal capacity.
• Aircraft quality heat treated for micro structure alignment and durability.
• Surface finish less than .7 microns.
• 100% measured and inspected to meet tolerance specifications. 

• Sold as ring only—reuse existing aluminum hat

• Includes full hardware kit for direct bolt-on installation

• Not compatible with street GT3 or Cayman GT4 models

• Weight: 18.70 lbs
  
  Common Vehicle Fitments:
   

This left-side front slotted rotor from Performance Friction is the exact OEM-spec replacement used on the Porsche 991 Cup and Cayman GT4 Clubsport. Built to withstand the rigors of professional-level motorsport, this 380mm x 32mm rotor is manufactured to the same standards as those supplied directly by Porsche—same part, same source, no compromises.

Performance Friction is the factory brake supplier for both of these track-only Porsche models, delivering unmatched thermal stability, consistent pedal feel, and durability under extreme conditions. These rotors are slotted for optimal gas and debris evacuation, helping to maintain pad bite and reduce glazing over long stints.

This replacement ring is sold without the hat, which is retained from the original assembly. All necessary mounting hardware is included for a hassle-free install. Designed exclusively for the factory race cars, this rotor is not compatible with street-going 911 GT3 or Cayman GT4 models.

Whether you're refreshing your Cup car or prepping your Clubsport for the next race weekend, this genuine PFC rotor delivers OEM performance you can trust at every apex.