Home > GiroDisc > Porsche > Cayman/Boxster > 981 Boxster Spyder > All > All > Brake Rotor Set - GiroDisc Slotted - Porsche 991.1 S, 4S, GTS Front Rotors

The GiroDisc system is a direct replacement for the OE disc on many Porsche models whether PCCB or non-PCCB equipped. The central hat section of our rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from proprietary cast iron, poured in the USA 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 Front of - Porsche 911.1 Carrera S/4S/GTS w/o PCCB - Porsche 981 Boxster Spyder Item# Item Name Our Price Qty Add GD-A1-122-SET Brake Rotor Compete Set - GiroDisc Slotted $1,300.00 GD-D1-122 Girodisc Brake Rotor Ring Replacement Set - Slotted $850.00 Check the items you wish to purchase, then click

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