A1-126 Girodisc Porsche 997 GT3 Cup 380x34mm Front Rotors,
Porsche 997 GT3 Cup 380x34mm Front Rotors Girodisc 2-piece floating front rotors are a direct, high-performance replacement for the factory discs on all Porsche 997.2 GT3 and GT2 models, including Cup applications. Designed to bolt directly to the car and work with OEM calipers, they allow continued use of unmodified factory pads—unlike most aftermarket solutions for this platform. This upgrade maintains factory brake bias and ABS function while reducing weight, improving cooling, and enhancing overall braking consistency. Each assembly features a precision-machined 6061-T6 aluminum hat mated to Girodisc’s proprietary high-carbon cast-iron rotor rings. The 380x34mm curved vane design acts as a centrifugal pump, drawing cooling air through the disc for outstanding heat management and fade resistance under high-load track conditions. Every component is designed, cast, and machined in-house in the USA to exacting motorsport standards. Precision-Engineered Performance Vehicle Fitment Por