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Girodisc Porsche GT4, 991, 992 PCCB Rear Iron Rotor Conversion

Girodisc Porsche GT4, 991, 992 PCCB Rear Iron Rotor Conversion

Need installation?

Pairs well with

Brake type: fits cars with Porsche Ceramic Composite Brakes (PCCB). Please check your car before ordering, or send us your VIN.

The Girodisc system is a direct replacement iron rotor for the OEM PCCB 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 12 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 class 12.9 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/priced in pairs

Fits

Porsche 718 Boxster (982) Roadster Spyder 2020-2024
Porsche 718 Cayman (981C) Coupe GT4 2015-2016
Porsche 718 Cayman (982C) Coupe GT4 2020-2024
Porsche 911 (991.1) Convertible Turbo Cabriolet 2014-2015
Porsche 911 (991.1) Convertible Turbo S Cabriolet 2014-2015
Porsche 911 (991.1) Coupe Turbo 2013-2015
Porsche 911 (991.1) Coupe Turbo S 2013-2015
Porsche 911 (991.2) Convertible Carrera 4 Cabriolet 2016-2019
Porsche 911 (991.2) Convertible Carrera 4 GTS Cabriolet 2017-2019
Porsche 911 (991.2) Convertible Carrera 4S Cabriolet 2016-2019
Porsche 911 (991.2) Convertible Carrera Cabriolet 2016-2019
Porsche 911 (991.2) Convertible Carrera GTS Cabriolet 2017-2019
Porsche 911 (991.2) Convertible Carrera S Cabriolet 2016-2019
Porsche 911 (991.2) Convertible Turbo Cabriolet 2016-2019
Porsche 911 (991.2) Convertible Turbo S Cabriolet 2016-2019
Porsche 911 (991.2) Coupe Carrera 2016-2019
Porsche 911 (991.2) Coupe Carrera 4 2016-2019
Porsche 911 (991.2) Coupe Carrera 4 GTS 2017-2019
Porsche 911 (991.2) Coupe Carrera 4S 2016-2019
Porsche 911 (991.2) Coupe Carrera GTS 2017-2019
Porsche 911 (991.2) Coupe Carrera S 2016-2019
Porsche 911 (991.2) Coupe Carrera T 2018-2019
Porsche 911 (991.2) Coupe Turbo 2016-2019
Porsche 911 (991.2) Coupe Turbo S 2016-2019
Porsche 911 (991.2) Roadster Targa 4 2016-2019
Porsche 911 (991.2) Roadster Targa 4 GTS 2017-2019
Porsche 911 (991.2) Roadster Targa 4S 2016-2019
Porsche 911 (992.1) Convertible Carrera 4 GTS Cabriolet 2022-2024
Porsche 911 (992.1) Convertible Carrera 4S Cabriolet 2019-2024
Porsche 911 (992.1) Convertible Carrera GTS Cabriolet 2022-2024
Porsche 911 (992.1) Convertible Carrera S Cabriolet 2019-2024
Porsche 911 (992.1) Coupe Carrera 4 GTS 2022-2024
Porsche 911 (992.1) Coupe Carrera 4S 2019-2024
Porsche 911 (992.1) Coupe Carrera GTS 2022-2024
Porsche 911 (992.1) Coupe Carrera S 2019-2024
Porsche 911 (992.1) Roadster Targa 4 GTS 2022-2024
Porsche 911 (992.1) Roadster Targa 4S 2020-2024

Manufacturer fitment

Porsche 911 (991) 991 Turbo, Turbo S (With PCCB) - Rear
Porsche 911 (991) 991.2 Carrera Base/C4/T (With PCCB) - Rear
Porsche 911 (991) 991.2 Carrera S/4S/GTS (With PCCB) - Rear
Porsche 911 (992) 992 Carrera S/4S (With PCCB) - Rear
Porsche 911 (992) 992 GTS (With PCCB) - Rear
Porsche Cayman/Boxster 718 Boxster Spyder (With PCCB) - Rear
Porsche Cayman/Boxster Cayman GT4 (With PCCB) - Rear

Part number

A2-156

Professional fitting is recommended.

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