Girodisc Dodge Viper ACR Rear Iron Rotor Conversion

Upgrade your Dodge Viper ACR’s braking performance with Girodisc’s precision-engineered rear iron rotor conversion. Designed to replace the OEM carbon-ceramic rotors, this setup delivers enhanced durability, improved thermal stability, and lower maintenance costs—ideal for drivers who push their ACRs to the limit on track.
Race-Ready Iron Rotor Conversion
The Girodisc system bolts directly to the Viper ACR’s factory hubs and Brembo calipers with no modifications required. Each rotor features a CNC-machined 6061-T6 aluminum hat mated to Girodisc’s proprietary high-carbon cast iron friction ring. This two-piece floating design allows the rotor to expand under heat without distortion, ensuring consistent pad contact and pedal feel during long track sessions. With superior heat capacity and rebuildable components, these rotors are a smart, serviceable alternative to OEM carbon ceramics.
Features
• Direct bolt-on replacement for OEM carbon-ceramic rear rotors
• Billet 6061-T6 aluminum hats with hard-anodized finish
• Proprietary high-carbon cast iron friction rings made in the USA
• Floating mount system with cadmium-plated steel drive pins
• Anti-noise spring washers eliminate rattle while maintaining float
• Curved vane internal design enhances airflow and cooling
• Fully rebuildable—replace only the rotor rings when worn
• Sold/priced per pair
Vehicle Fitment
Dodge Viper ACR (2016–2017)
Also compatible with models originally equipped with factory carbon-ceramic brakes.
Girodisc A2-165 Rear Rotor FAQs:
Why convert from carbon-ceramic to iron rotors? Iron rotors offer improved heat management, better pedal modulation, and dramatically reduced replacement costs—ideal for frequent track use where carbon ceramics can wear prematurely.
Do these rotors bolt directly to the factory hardware? Yes. The Girodisc conversion reuses OEM hubs, calipers, and mounting hardware for a precise, no-fuss installation.
Will these change brake balance or ABS calibration? No. Girodisc maintains OEM dimensions and weight distribution to preserve factory brake bias and electronic control functions.
How do they perform compared to the OEM carbon-ceramic setup? Expect slightly more initial bite, consistent braking through extended sessions, and superior heat tolerance during aggressive driving.
Bring race-proven reliability and serviceability to your Dodge Viper ACR with Girodisc’s rear iron rotor conversion—built for the demands of the world’s most capable track car.