Girodisc Porsche 992 GT3, GT4 RS Rear Replacement Rings
Keep your Porsche’s braking system performing at its best with Girodisc D2-272 rear replacement rings. Designed as direct replacements for Girodisc two-piece rotor assemblies, these high-performance 380mm rings restore cooling efficiency, reduce fade, and maintain optimal pedal feel lap after lap.
Vehicle Fitment
Compatible with:
• 2022–2025 Porsche 911 GT3 (992)
• 2023–2025 Porsche 718 Cayman GT4 RS
• 2023–2025 Porsche 718 Spyder RS
Note: These are friction rings only. They attach to existing Girodisc aluminum hats using the supplied floating hardware kit.
Precision-Crafted for Track and Street
Each Girodisc rotor ring is cast from a proprietary high-carbon iron alloy and machined in-house in the USA. The 72 curved directional vanes are designed to act as a centrifugal pump, pulling air through the disc to maximize cooling and stability under extreme heat. Whether you’re attacking corners on a race circuit or pushing hard on mountain roads, Girodisc rotors deliver consistent, confident braking.
Features
• Direct replacements for Girodisc 380mm rear rotors
• Fits Porsche 992 GT3, GT4 RS, and Spyder RS models
• Proprietary high-carbon iron construction for superior heat resistance
• Curved directional vanes enhance airflow and cooling
• Precision machined, balanced, and finished in the USA
• Includes new floating hardware kit
• Sold/priced per pair
Specifications
• Diameter: 380mm
• Position: Rear
• Material: High-carbon cast iron
• Includes: Two rotor rings and full hardware kit
• Made in the USA
• Sold/priced per pair
Girodisc D2-272 Replacement Ring FAQs
Are these compatible with OEM Porsche rotors? No. These rings are designed for Girodisc two-piece systems and will not fit factory one-piece or PCCB rotors.
Do the rings come with hardware? Yes. Each set includes a full floating hardware kit with pins, bolts, and washers for an easy installation.
Can these be used for track driving? Absolutely. Girodisc rotors are race-proven and built to handle sustained high temperatures without warping or fade.
How often should replacement rings be changed? Replace them when the rotor reaches its minimum thickness or shows cracking that extends to the edge of the disc.
Renew your Porsche’s braking confidence with Girodisc D2-272 rear replacement rings — precision-built for the 992 GT3 and GT4 RS, combining world-class craftsmanship with proven track performance.
