Girodisc Porsche 986, 987 Rear Rings
Refresh the braking performance of your Porsche Cayman or Boxster with Girodisc D2-031 299mm rear replacement rings. These precision-engineered rings are designed to bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Replace only the worn rotor surface while maintaining the lightweight performance of your Girodisc two-piece system.
Vehicle Fitment
Compatible with:
• Porsche 986 Boxster / Boxster S (1997–2004, rear)
• Porsche 987 Boxster / Boxster S (2005–2012, rear)
• Porsche 987 Cayman / Cayman S (2006–2012, rear)
Note: For use with Girodisc 299mm two-piece rear rotor systems only. Not compatible with OEM or PCCB carbon-ceramic rotors.
Features
• Sold as a left/right pair and includes complete floating hardware kit
• Direct replacements for Girodisc 299mm two-piece rear rotors
• High-carbon cast iron construction improves heat capacity and stability
• Directional curved vanes enhance airflow and reduce fade
• Maintains factory brake balance and ABS functionality
• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 299mm
• Position: Rear
• Material: High-carbon cast iron
• Mount type: Floating two-piece system
• Includes: Two rings and hardware kit
• Sold/priced per pair
Girodisc D2-031 Porsche 986 / 987 Rear Replacement Ring FAQs
Do these fit factory Porsche rotor hats? No. The D2-031 rings are designed only for Girodisc aluminum hats and will not fit factory one-piece or PCCB systems.
Can I reuse my Girodisc hardware? No. Each kit includes brand new hardware that must be used during installation for proper torque and float tolerance.
Are these compatible with the factory calipers? Yes. The D2-031 rings are engineered to maintain the stock caliper offset and fitment with OEM or aftermarket pads.
Are they suitable for autocross or light track use? Absolutely. These rings provide excellent heat control and consistent braking performance under spirited driving conditions.
Restore confidence and control in your Porsche Cayman or Boxster with Girodisc D2-031 299mm rear replacement rings — precision-built for cooling, strength, and long-lasting braking performance on the street or track.
