Girodisc Porsche 997 GT3 Cup Rear Rotors
Developed for Porsche’s factory-built track machines, the Girodisc rear rotors for the 997 GT3 Cup deliver the strength, heat capacity, and rebuildability needed for serious motorsport use. These two-piece floating rotors are designed to handle extreme braking forces while maintaining OEM balance, pedal feel, and ABS function.
Vehicle Fitment
Porsche 911 GT3 Cup (997.1 & 997.2)
Porsche 911 GT3 (997.2)
Porsche 911 GT2 (997.2)
Compatible with OEM Brembo calipers and both iron and PCCB factory setups.
Engineered for Race-Level Braking Performance
The Girodisc system bolts directly to the factory hubs with no modifications required. Each rotor features a U.S.-sourced 6061-T6 aluminum hat mated to Girodisc’s proprietary cast-iron friction ring. The floating two-piece design allows for thermal expansion without warping, maintaining consistent pad contact through repeated heat cycles. Internal curved vanes act as centrifugal pumps, forcing air through the disc to improve cooling during long sessions. This combination of precision machining and race-tested materials ensures maximum reliability and control on and off the track.
Features
• Direct OEM replacement for Porsche 997 GT3 Cup rear rotors
• 6061-T6 billet aluminum hats with hard-anodized finish
• Proprietary high-carbon cast-iron rings cast and machined in the USA
• Floating mount system with 10 cadmium-plated steel drive pins
• Anti-noise spring washers prevent rattle while maintaining float
• Curved vane design for optimal airflow and heat dissipation
• Retains OEM pad compatibility—no modification required
• Fully rebuildable—replace only the iron rings when worn
• Sold/priced per pair
Girodisc A2-126 Rear Rotor FAQs:
Are these compatible with both PCCB and iron brake systems? Yes. Girodisc rotors are designed to bolt directly onto 997.2 GT3 and GT2 models with either PCCB or iron setups using the same OEM calipers and pads.
Do I need to change pads when switching to these rotors? No. Unlike many aftermarket kits, these rotors are designed to use factory unmodified pads and hardware.
What advantages do Girodisc rotors offer over stock rotors? They provide better cooling efficiency, lower unsprung mass, and rebuildability—ideal for track use where consistency and serviceability matter most.
Can these rotors handle full race conditions? Absolutely. Girodisc rotors are engineered for professional-level track environments and are proven to withstand prolonged high-temperature cycles.
Equip your Porsche 997 GT3 Cup with Girodisc rear rotors for uncompromising precision, control, and endurance—built to match the car’s motorsport pedigree.
