A1-066 Girodisc 2pc Front Brake Rotors (OEM Steel)


A1-066 Girodisc 2pc Front Brake Rotors (OEM Steel)


Girodisc A1-066 Two Piece Floating Rotors

These Rotors Fit The Following Cars (with OEM Steel Rotors):

  • Porsche 981 Cayman GT4
  • Porsche 718 Cayman GT4
  • Porsche 991 Turbo/Turbo S
  • Porsche 997 Turbo

This Girodisc system upgrades the OEM front brakes to a 380mm two-piece steel disc and aluminum hat. This two-piece "floating rotor" design will bolt directly to your GT4 front and work flawlessly with the OEM calipers. Particularly when paired with the Girodisc A2-155 rear rotors, upgrading your brakes to lightweight, high-performance Girodisc rotors maintains the factory brake bias and ABS effectiveness. Much lighter than the OEM rotors, Girodisc rotors reduce rotational and unsprung mass giving you stronger braking and faster suspension response.

Combined with Pagid or PFC racing brake pads and Thunderhill RF1 racing brake fluid, Girodisc rotors are the ultimate solution to overheated, cracked, warped OEM Porsche rotors that result from high-performance driving.

The central hat of the rotor is made from 6061-T6 aircraft aluminum. The disc is manufactured in the USA from the same cast iron used by professional racing organizations. Its curved-vane design, developed in racing, acts like a centrifugal pump forcing cool air through the disc.

The disc and hat mount together through a floating mount system using ten cadmium plated, high-strength alloy steel drive pins manufactured by Girodisc. These drive pins transfer braking load while maintaining axial and radial float between the disc and hat to allow for heat expansion. Anti-noise spring washers eliminate the noise typically associated with floating rotors.

This two-piece Girodisc design allows for disc-only replacement, reusing the hat to minimize maintenance costs.

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Total price: $1,700.00