GiroDisc2-Piece Floating Replacements for OEM Steel Rotors (set of four) for 991 / 991.2 GT3 / RS and Turbo / S
- 911 GT3 RS - 991
- 911 GT3 - 991.2
- 911 GT3 - 991
- 911 GT3 RS - 991.2
- 911 Turbo / S - 991.2
- 911 Turbo / S - 991
The GiroDisc two piece rotor replacement kit is designed for those of you looking for improved performance on your GT3 or Turbo
The Girodisc system is a direct replacement iron rotor for the OEM disc, no modifications are necessary. The disc will bolt directly to the car and work with OEM calipers and pads perfectly.
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. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The pins are secured by grade 12 cap screws with hardened washers. 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 as a set of four.
Also available with ST43 front and rear brake pads. Select this option above before adding to cart.