A2-126 Girodisc Porsche 997 GT3 Cup Rear Rotors

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 throug