D1-187 Girodisc Audi 400mm Front Replacement Rings
Maintain the incredible stopping power of your Audi RS with Girodisc D1-187 400mm front replacement rings. These precision-machined rings bolt directly to your existing Girodisc aluminum hats using the supplied floating hardware kit. Engineered from high-carbon cast iron, they deliver consistent performance under heat, reduced fade, and improved pedal modulation compared to OEM rotors.
Vehicle Fitment
Compatible with:
• Audi RS6 (C7, 2014–2018)
• Audi RS7 (C7, 2014–2018)
• Audi S8 (D4, 2013–2018)
• Audi S6 / S7 Performance Package (C7, optional 400 mm brakes)
Note: These fit Girodisc 400 mm two-piece front rotor systems only. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit
• Direct replacements for Girodisc 400 mm two-piece front rotors
• CNC-machined from high-carbon cast iron for stability under repeated high-heat braking
• Directional curved vanes force airflow through the rotor for superior cooling
• Maintains factory brake bias and ABS calibration
• Balanced to within 2 grams for vibration-free performance
• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 400 mm
• Position: Front
• Material: High-carbon cast iron
• Mount type: Floating two-piece system
• Includes: Two rotor rings and complete hardware kit
• Sold/priced per pair
Girodisc D1-187 Audi 400 mm Front Ring FAQs
Can I reuse the OEM Audi rotor hats with these rings? No. The bolt pattern and float hardware differ; these are designed for Girodisc hats only.
What torque specs should I use on the hardware? Tighten the drive bolts to 12 ft-lbs (16 Nm) using blue Loctite, then safety-wire if applicable per Girodisc instructions.
Are these compatible with the RS6/RS7 factory ceramic brake option? No. The D1-187 rings fit the steel rotor conversion or factory iron brake systems only.
Do they work with aftermarket track pads like Pagid RS or Ferodo DS series? Yes. These rotors pair well with all high-friction track compounds and resist heat cracking during repeated heavy stops.
Upgrade your Audi RS or S model with Girodisc D1-187 400 mm front replacement rings — the track-tested, service-friendly solution for maximum cooling and consistent stopping power.
