Girodisc Porsche 993 Carrera 4S, RS, Turbo Rear Rotors
Engineered for the final generation of air-cooled 911s, Girodisc rear rotors for the Porsche 993 Carrera 4S, RS, and Turbo bring modern performance to classic precision. These lightweight, two-piece floating rotors are designed as a direct OEM replacement, offering improved cooling, reduced unsprung weight, and exceptional brake balance without altering factory components.
Vehicle Fitment
Porsche 911 (993) Carrera 4S
Porsche 911 (993) RS
Porsche 911 (993) Turbo
Compatible with OEM calipers and factory mounting hardware.
Classic Porsche Balance Meets Modern Braking Engineering
The Girodisc system bolts directly to the factory hubs—no modifications necessary. Each rotor features a lightweight 6061-T6 aluminum hat paired with Girodisc’s proprietary cast-iron friction ring, precision-machined in the USA. The curved internal vane design acts as a centrifugal pump, drawing air through the disc for superior heat management during spirited driving. The floating mount system maintains even pad contact, eliminates distortion under heat, and enhances pedal consistency for both street and track use.
Features
• Direct OEM replacement – installs with no modifications
• 6061-T6 billet aluminum hats with hard-anodized finish
• Proprietary cast-iron friction rings, poured and machined in the USA
• Floating mount system with 10 cadmium-plated steel drive pins
• Anti-noise spring washers prevent rattle and ensure smooth float
• Curved vane design improves airflow and heat dissipation
• Significantly lighter than OEM rotors for better suspension response
• Fully rebuildable – replace only the iron rings when worn
• Sold/priced per pair
Girodisc A2-103 Rear Rotor FAQs:
Do these rotors fit all Porsche 993 Turbo and Carrera 4S models? Yes. They are a direct bolt-on for all 993 Carrera 4S, RS, and Turbo models using OEM calipers and hardware.
Are these rotors lighter than factory units? Absolutely. Each Girodisc rotor sheds several pounds compared to OEM cast iron, reducing unsprung weight and improving steering response.
Can I use OEM pads with these rotors? Yes. They are fully compatible with factory pads, as well as most performance compounds designed for iron discs.
Are these suitable for both street and track driving? Yes. The Girodisc design offers quiet, smooth operation for street use and consistent fade-free performance during aggressive driving or track days.
Give your air-cooled Porsche the braking performance it deserves with Girodisc rear rotors—precision-built to complement the timeless 993 chassis.
