GiroDisc Porsche 996, 991, 992 Rear Rotors, incl. spacers & bolts

Note: for all 991 base Carrera cars, please use the S/4S/GTS rear pad shape for full sweep across the rotor. If you have any questions, contact us and we will be happy to point you in the correct direction! The Girodisc system is a direct replacement for the OE disc with the addition of our provided caliper spacers and longer bolts to accommodate the larger 350mm rotor.  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 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