The GiroDisc system is a direct replacement for the OE disc on all 997 Turbos, both PCCB and non-PCCB equipped vehicles.
The central hat section of our rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from our own proprietary cast iron, poured in the USA and machined from start to finish in house at Girodisc. The rotor utilizes a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.
The rotor and hat have a floating mount system, which utilizes 8 or 10 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a long lasting corrosion resistance. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads.
Once the Girodisc system is in place, simply replace the cast iron rotor when needed.
Sold/priced in pairs.
Fits Rear of
- Porsche 996 C4S
- Porsche 996 Turbo
- Porsche 996 GT3
- Porsche 997.1/997.2 C2S & C4S
- Porsche 997.1/997.2 GT2/GT3
- Porsche 997 Turbo
- Porsche 991 C2S/C4S
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