Girodisc A2-209 Alfa Romeo Giulia & Stelvio Quadrifoglio Rear Iron Rotors

The Girodisc A2-209 Rear Iron Rotor Conversion is a direct replacement braking solution for Alfa Romeo Giulia Quadrifoglio and Stelvio Quadrifoglio models originally equipped with factory carbon ceramic brakes. Designed to bolt directly to the vehicle with no modifications required, this system works seamlessly with the OE rear calipers while delivering improved durability, thermal stability, and long-term serviceability.

Featuring Girodisc’s proven two-piece floating design, the A2-209 rear rotors use a lightweight aluminum hat paired with a motorsports-grade cast iron rotor ring. This combination provides consistent braking performance under aggressive street or track use while significantly reducing replacement costs compared to OEM carbon ceramic rotors. Once installed, only the cast iron rotor rings need to be replaced during service intervals. Sold and priced as a rear pair.

Key Features

• Rear iron rotor conversion for carbon ceramic–equipped Quadrifoglio models

• Direct bolt-on replacement with no vehicle modifications required

• Compatible with factory rear calipers

• Two-piece floating design for improved heat control and durability

• Reduced long-term maintenance costs versus carbon ceramic rotors

• Ideal for spirited street driving and track use

Technical Specs

• Position: Rear

• Rotor Type: Two-piece floating iron rotor conversion

• Hat Material: U.S.-sourced 6061-T6 aircraft-grade aluminum

• Rotor Material: Girodisc proprietary cast iron (USA poured & machined)

• Vane Design: Curved internal vanes for centrifugal air cooling

• Floating Hardware:

  • 10 high-strength alloy steel drive pins

  • Cadmium-plated for corrosion resistance

  • Class 12.9 cap screws with hardened washers

  • Anti-noise spring washers to prevent cold rattle

• Serviceability: Replaceable cast iron rotor rings

• Sold As: Pair

Vehicle Fitment

• Alfa Romeo Giulia Quadrifoglio (2016–present) – with carbon ceramic brakes

• Alfa Romeo Stelvio Quadrifoglio (2016–present) – with carbon ceramic brakes