Girodisc Audi B8, B9 RS5 Rear Rotors
Developed for the demanding braking systems found on Audi’s RS5, these Girodisc rear rotors combine precision engineering with reduced unsprung weight for sharper response and superior heat control. The two-piece design enhances durability and cooling efficiency while maintaining full compatibility with factory calipers and ABS systems.
Vehicle Fitment
Audi RS5 (B8, 2013–2015)
Audi RS5 (B9, 2018–2023)
Compatible with OEM Brembo rear calipers and factory hardware.
Performance Engineering for Track and Street
The Girodisc system is a direct bolt-on replacement for the OEM rotors—no modifications required. Each rotor features a lightweight 6061-T6 aluminum hat paired with Girodisc’s proprietary cast-iron friction ring. The floating two-piece design allows for natural expansion under extreme heat, maintaining consistent pad contact and brake feel. Curved internal vanes pull cooling air through the disc, greatly improving temperature management during spirited or track driving.
Features
• Direct OEM replacement – no modifications required
• Billet 6061-T6 aluminum hats with anodized finish
• Proprietary cast-iron rings, cast and machined in the USA
• Floating mount system with 10 cadmium-plated drive pins
• Anti-noise spring washers eliminate rattle and maintain float
• Curved vane design increases airflow for optimal cooling
• Lightweight two-piece construction reduces unsprung mass
• Fully rebuildable—replace only the iron rings when worn
• Sold/priced per pair
Girodisc A2-149 Rear Rotor FAQs:
Are these rotors compatible with both B8 and B9 RS5 models? Yes. Girodisc designed the A2-149 rotors to fit both generations using the OEM Brembo rear brake setup.
What benefits will I notice compared to factory rotors? You’ll experience reduced fade, better cooling under sustained braking, and improved suspension response due to lower unsprung weight.
Do these rotors work with stock pads? Yes. They’re fully compatible with OEM or performance pad compounds designed for iron rotors.
Are they suitable for street use? Absolutely. Girodisc rotors deliver smooth, quiet operation on the street with the thermal stability needed for track sessions.
Enhance your Audi RS5’s braking precision and performance with Girodisc rear rotors—lightweight, rebuildable, and purpose-built for consistent, confidence-inspiring stops.
