Porsche 992 GT3 Cup Front Replacement Rings
Restore world-class braking performance to your Porsche 992 GT3 Cup with the Girodisc D1-287 Front Replacement Rings. Engineered for endurance and precision, these 410x36mm iron rotor rings are direct replacements for Girodisc two-piece front rotors used in competition or iron conversion applications. Built to withstand extreme thermal loads and track punishment, the D1-287 rings deliver consistent, fade-free braking lap after lap.
Each ring is machined from Girodisc’s proprietary U.S.-poured high-carbon cast iron, chosen for its exceptional strength, heat resistance, and stability. Designed with 48 curved directional vanes, these rotors channel air efficiently for superior cooling and reduced thermal stress. The result is braking performance you can rely on through every corner, every lap, every session.
Features and Benefits
- Direct replacement rings for Girodisc 992 GT3 Cup 410x36mm two-piece front rotors
- Machined from proprietary U.S.-poured high-carbon cast iron for maximum thermal stability
- 48 curved directional vanes for optimal cooling and consistent performance
- Lightweight two-piece floating design reduces unsprung mass and enhances handling
- Includes all new hardware: drive pins, bolts, and washers
- Precision machined, balanced, and assembled in the USA
Vehicle Fitment
- 2022+ Porsche 911 GT3 Cup (992)
These replacement rings are designed exclusively for Girodisc aluminum hats. They will not fit OEM or other aftermarket hat systems. This set replaces the original Girodisc front assemblies used in GT3 Cup and iron conversion configurations.
Why Choose Girodisc
Girodisc has set the standard for performance braking systems through precision engineering and uncompromising quality. Each rotor ring is developed for motorsport environments, ensuring consistent friction characteristics and resistance to thermal cracking under the most demanding conditions. With the D1-287 rings installed, your Porsche 992 GT3 Cup will brake with the same confidence and control that define true race-winning performance.
FAQs
Do these include the aluminum hats?
No. The D1-287 kit includes only the iron rotor rings and a complete hardware kit. Your existing Girodisc hats are reused.
Can I install these with factory Porsche rotors?
No. Girodisc replacement rings are engineered specifically for Girodisc hats and will not fit OEM or other aftermarket systems.
Are the rotors directional?
Yes. Each ring features curved internal vanes that must be installed on the correct side for optimal airflow and cooling efficiency.
What’s included?
Two 410x36mm front rotor rings (left and right) and a full hardware kit including new drive pins, bolts, and washers.
Ready to Refresh?
Bring your Porsche 992 GT3 Cup back to full braking potential with Girodisc D1-287 Front Replacement Rings. Designed for uncompromising performance on the track, these rotor rings deliver the cooling, balance, and durability needed for every race-winning lap. Order your set today from Competition Motorsport and keep your GT3 Cup braking with factory precision and motorsport strength.
