Upgrading an Audi RS7 from standard iron brakes to a carbon ceramic system is one of the most significant performance modifications an owner can undertake. This conversion involves replacing the entire braking corner to accommodate the massive 440mm front discs used on the C8 platform. Understanding exactly what is included in these kits is essential for ensuring a safe and functional installation.
Contents
- Key Context
- Structured Analysis
- Practical Checklist
- CTA
- FAQ
- Source Notes
- Professional Disclaimer
Key Context
The Audi RS7 (C8) factory carbon ceramic brake (CCB) system is designed to provide fade-free performance for a vehicle that weighs nearly 5,000 pounds. While the standard steel brakes are capable, the CCB system offers a weight reduction of approximately 34kg (75 lbs) in unsprung mass.
A conversion kit is required when an RS7 was not originally optioned with the "Dynamic Plus" package or the standalone ceramic brake upgrade from the factory. Because the ceramic rotors have different dimensions and thermal properties than their iron counterparts, a simple rotor swap is not possible; a comprehensive kit of specific hardware is required.
Structured Analysis
1. Carbon Ceramic Brake Discs (Rotors)
The core of the kit consists of four rotors. For the Audi RS7 (C8), the standard ceramic fitment includes 440mm x 40mm front rotors and 370mm x 30mm rear rotors. These discs are composed of a carbon-fiber-reinforced silicon carbide (C/SiC) material. They are significantly larger than the iron rotors they replace but weigh substantially less.
2. Caliper Assemblies
A conversion kit must include specialized calipers. For the RS7, these are typically 10-piston units at the front. These calipers are designed with a specific offset and piston volume to match the 440mm rotor diameter. They are usually available in factory finishes such as Grey, Red, or Blue with the "Audi ceramic" branding.
3. High-Performance Brake Pads
Carbon ceramic rotors require specific brake pads formulated to work with the ceramic surface. Using standard iron-brake pads on a CCB rotor will result in immediate damage to the disc. The kit should include a full set of front and rear pads designed for the higher operating temperatures of the RS7 ceramic system.
4. Mounting Hardware and Fasteners
Because many braking components use "stretch bolts" (torque-to-yield), a proper conversion kit includes new hardware. This typically involves:
* New caliper mounting bolts.
* Replacement rotor set screws.
* Brake pad wear sensors compatible with the CCB pads.
* Splash shields/dust shields (if the iron versions do not provide adequate clearance for the 440mm rotors).
5. Brake Lines and Fluid
While some kits reuse factory lines, high-end conversions often include braided stainless steel lines to improve pedal feel. At a minimum, the conversion requires a full flush and replacement with high-boiling-point DOT 4 synthetic brake fluid to handle the increased thermal capacity of the system.
6. Value and Pricing Context
The cost of a complete OEM Audi RS7 conversion kit can be substantial. Retail prices in the European market are often cited above €27,000, with North American prices frequently exceeding $30,000 for a full factory set.
For owners seeking replacement rotors or direct-fit alternatives, ForzaCCB provides published pricing for matched pairs. For the RS7 (C8), the 440mm front rotors fall into the Track Spec category at $2,350 per pair ($1,175 per rotor), while the 370mm rear rotors fall into the Street Spec category at $1,950 per pair ($975 per rotor). This brings a full set of replacement rotors to approximately $4,300 before shipping and duty. Estimated DDP delivery for major markets is approx. $150/rotor, though this varies by destination and taxes.
Practical Checklist
- Wheel Clearance: Verify that your current wheels are at least 21 inches (preferably 22 inches) to clear the 440mm front calipers.
- Coding Requirements: Ensure your technician has access to ODIS or VCDS to update the ABS/ESC control module to the "Ceramic" brake profile.
- Hardware Inspection: Confirm the kit includes single-use caliper bolts, as reusing old bolts on a 600hp vehicle is a safety risk.
- Bedding Procedure: Plan for a specific bedding-in process once installed to transfer a transfer layer of pad material to the rotors.
- Weight Verification: Document the weight of the new components to understand the specific unsprung mass savings for your vehicle setup.
Recommended Next Step
Looking to plan the right brake package for Audi RS7? Browse our Audi Collection to compare vehicle-specific carbon ceramic rotor and upgrade options.
FAQ
Do I need to change my master cylinder for the RS7 ceramic conversion?
Generally, the factory master cylinder on the RS7 (C8) is compatible with both iron and ceramic systems, but the software coding must be changed to adjust the bias and ABS intervention parameters.
Will the ceramic brakes squeak during daily driving?
While modern Audi CCBs are much quieter than older generations, some "cold squeal" is normal. This usually disappears once the rotors reach operating temperature.
Can I use my existing iron-brake calipers with ceramic rotors?
No. The 440mm front ceramic rotors are larger than the standard iron discs, and the caliper mounting points and offsets are different. You must use the dedicated CCB calipers.
How long do the rotors in an RS7 conversion kit last?
Under street driving conditions, carbon ceramic rotors are designed to last the lifetime of the vehicle (up to 100,000+ miles). However, heavy track use will significantly accelerate wear.
Model-specific product match: Carbon Ceramic Brake Rotors for Audi RS7 4G8 (2013-2018) | CCB OEM Replacement / Conversion Upgrade Kit.
Explore fitment-focused options here: Audi Collection.
Source Notes
- Source: https://www.partsbytopher.com/products/ceramic-brake-conversion
- Source: https://stopflex-ccb.com/products/audi-rs7-s7-c8-carbon-ceramic-brake-kits
Professional Disclaimer
All third-party trademarks, brand names, and model names are the property of their respective owners. References are for identification only and do not imply affiliation or endorsement.