• Girodisc Front 380mm 2-piece Rotor for Porsche 991 GT3 w/OEM Iron Rotors - A1-146

Girodisc Front 380mm 2-piece Rotor for Porsche 991 GT3 w/OEM Iron Rotors - A1-146

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$1,700.00
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WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.

The Girodisc system is a direct replacement for the OE disc on the 991 GT3 and GT3 RS with OEM iron rotors. No modifications are necessary, allows use of factory unmodified pads unlike most aftermarket solutions for this application. The disc will bolt directly to the car and work with OE calipers perfectly. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency.

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 per pair

The rotor and hat have a floating mount system, which utilizes 10 high strength alloy steel drive pins, manufactured by Girodisc 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. 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. When used with performance pads and hi-temp fluid, you have what amounts to a truly amazing solution to overheating or warping rotors.If your car same with OEM center lock wheels please select the center lock drive pin option.

Sold/priced per pair.

Year
Make
Model
Submodel
Engine
2014
Porsche
911
Base
3.8
2013, 2015
Porsche
911
Carrera
3.4
2013 - 2016
Porsche
911
Carrera 4
3.4
2011 - 2012
Porsche
911
Carrera 4
3.6
2012, 2015 - 2016
Porsche
911
Carrera 4 GTS
3.8
2011 - 2016
Porsche
911
Carrera 4S
3.8
2011 - 2012, 2015 - 2016
Porsche
911
Carrera GTS
3.8
2011 - 2016
Porsche
911
Carrera S
3.8
2011 - 2012
Porsche
911
GT2 RS
3.6
2018 - 2019
Porsche
911
GT2 RS
3.8
2014 - 2016
Porsche
911
GT3
3.8
2016, 2018 - 2019
Porsche
911
GT3
4.0
2011
Porsche
911
GT3 RS
3.8
2011 - 2012, 2016, 2019
Porsche
911
GT3 RS
4.0
2016
Porsche
911
R
4.0
2014 - 2016
Porsche
911
Targa 4
3.4
2011 - 2012
Porsche
911
Targa 4
3.6
2015 - 2016
Porsche
911
Targa 4 GTS
3.8
2011 - 2012, 2014 - 2016
Porsche
911
Targa 4S
3.8
2011 - 2016
Porsche
911
Turbo
3.8
2011 - 2016
Porsche
911
Turbo S
3.8
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