Audi RS7 (C8) Brake Upgrade Guide: Floating Rotors, Carbon Ceramic Discs & Conversion Kits
- Triton Motorsports
- 52 minutes ago
- 5 min read
The Audi RS7 (C8) is one of the most complete performance cars on the road today — a 591-horsepower twin-turbo V8 wrapped in a Sportback body that somehow manages to be both a daily driver and a genuine autobahn weapon. That dual identity is exactly why the braking system deserves serious attention. A car this capable of sustained high speed needs brakes that can absorb that energy reliably, stop after stop, without fading.
This guide covers every brake upgrade path available for the C8 RS7 — from the floating steel rotor upgrade through full carbon ceramic conversion — with the exact specifications, fitment details, and pricing for each option.
Note: the RS7 shares its platform, chassis, and braking system specification with the RS6 Avant. Everything in this guide applies identically to both. If you're specifically researching the RS6, we also have a dedicated RS6 brake upgrade guide.
Why the Factory RS7 Braking System Has Room to Improve
Like most of Audi's performance lineup, the RS7's factory steel rotors use a quasi 2-piece construction — a cast or riveted connection between the rotor ring and the hub rather than true mechanical independence. The visual cue of two distinct pieces is there, but the rotor behaves as a single rigid unit under heat.
For a car weighing close to 4,800 lbs and capable of sustained high-speed cruising followed by hard braking, this matters. Without a true floating connection, heat from the friction surface transfers more directly into the hub, the rotor expands less predictably under thermal load, and the wear pattern across repeated hard stops becomes less consistent. None of this makes the factory brakes unsafe — but it does leave meaningful thermal performance unclaimed, particularly for owners who drive their RS7 the way it was engineered to be driven.
Option 1: True 2-Piece Floating Steel Rotors
Triton's floating rotor upgrade replaces the factory quasi 2-piece design with a genuine floating assembly — a rotor ring mechanically separated from the aluminum hat, free to expand thermally without transferring stress into the hub or bearing.
Technical Specifications
Specification | Front | Rear |
Rotor diameter | 420mm | 370mm |
Rotor thickness | 40mm | 30mm |
Ring material | G3500 High Carbon Steel | G3500 High Carbon Steel |
Hat material | Billet Aluminum | Billet Aluminum |
Design | True 2-piece floating | True 2-piece floating |
OE part replaced | 4K0615301S / 4M8615301D | 4K0615601A |
Caliper compatibility | Factory OEM calipers | Factory OEM calipers |
For reference, the OEM steel front rotor at this 420x40mm size weighs approximately 47.7 lbs from the factory, with the rear at approximately 24.7 lbs. Triton's billet aluminum hat construction meaningfully reduces this versus the factory steel hub design, cutting unsprung weight at all four corners.
Price: From $1,391 (pads not included)Turnaround time: ~35 days Customer rating: 4.9 out of 5 stars (11 reviews) Warranty: 1 year / 36,000 miles against manufacturer defects
Option 2: Iron-to-Carbon Ceramic Conversion Kit
For RS7 owners who took delivery with the standard steel braking system and want to move directly to carbon ceramic performance, Triton's conversion kit replaces the entire front and rear brake disc setup with Gen 3 carbon ceramic discs — no caliper changes required.
This is the same 420x40mm front / 370x30mm rear sizing as the steel rotor, engineered as a direct bolt-on for the factory RS7 caliper. The kit includes carbon ceramic-specific brake pads for both axles.
Price: $11,998 for a complete front and rear set including pads Turnaround time: ~50 days Customer rating: 4.7 out of 5 stars (11 reviews)Warranty: 1 year / 36,000 miles against manufacturer defects
Carbon ceramic discs run nearly 50% lighter than the equivalent steel rotor, meaning a meaningfully larger reduction in unsprung mass than the steel floating upgrade alone — on top of essentially eliminating fade under sustained hard use.
Option 3: Direct Replacement Carbon Ceramic Discs
If your RS7 was already factory-equipped with carbon ceramic brakes and you need replacement discs — whether from wear or upgrading to Triton's Gen 3 technology — this product is the correct fitment. It is a drop-in replacement for the factory CCB system with no modification required.
OE part numbers replaced: 4K0-615-302-R (front), 4M0-615-601-AD (rear)Price: From $6,598 (pads sold separately)Turnaround time: ~50 daysCustomer rating: 5.0 out of 5 stars (10 reviews)Warranty: 1 year / 36,000 miles against manufacturer defects
Which Option Is Right for Your RS7?
Choose the floating steel rotor if: your RS7 has the standard steel brakes, you want a meaningful upgrade in thermal consistency and rotor longevity over OEM, and you want the most accessible price point at $1,391 for a complete set.
Choose the iron-to-carbon ceramic conversion if: your RS7 has standard steel brakes and you want to move directly to the highest performance tier — eliminating fade entirely and cutting unsprung weight nearly in half versus steel.
Choose the direct replacement carbon ceramic discs if: your RS7 already came from the factory with carbon ceramic brakes and you need replacement discs that match or exceed OEM performance.
Fitment Guide
Model | Years | Floating Rotors | Iron-to-CCB Conversion | CCB Direct Replacement |
Audi RS7 Sportback (C8) | 2020–present | ✓ | ✓ | ✓ |
Audi RS6 Avant (C8) | 2020–present | ✓ | ✓ | ✓ |
RS6 and RS7 share identical brake specifications across all three product tiers — both ride on the same C8 platform with the same 4.0 TFSI twin-turbo V8 and the same factory brake hardware. If you're unsure which carbon ceramic option applies to your car, check whether your RS7 was ordered with the factory ceramic brake option — if so, you need the direct replacement discs; if your car has standard steel brakes, either the floating rotor or the conversion kit applies depending on your performance goal.
Not sure which setup your car has? Contact Triton with your VIN or build sheet and we'll confirm before you order.
Frequently Asked Questions
Will any of these options affect my RS7's ABS or stability control?
No. All three products are engineered as direct fitments for the factory caliper and sensor setup. No ABS recalibration or coding is required for any option.
Do I need new brake pads with the floating steel rotor?
Pads are not included with the floating rotor set. If your current pads are more than 50% worn, replacing them at the same time is recommended for proper bedding.
Is the carbon ceramic conversion kit reversible?
The conversion kit is a direct physical replacement of the disc and pad system. Reverting to steel would require reinstalling steel rotors and steel-compatible pads — it is mechanically possible but not something Triton recommends once the upgrade is installed.
How long will Triton's RS7 carbon ceramic discs last?
Service life depends on use intensity and pad compound. Gen 3 carbon ceramic technology offers improved structural integrity and longevity over conventional Gen 2 short-fiber carbon ceramic, particularly under repeated high-speed driving and track use.
What's the difference between this and the RSQ8 brake products?
The RSQ8 shares the same general C8 platform family but uses different brake hardware due to its SUV body and weight distribution. Triton offers separate dedicated products for RSQ8 — check the carbon ceramic collection for RSQ8-specific fitments.
The Bottom Line
The Audi RS7 deserves a braking system that matches its dual nature as both a high-speed cruiser and a genuine performance car. Whether that means a true floating steel rotor at an accessible price point, a full carbon ceramic conversion for owners who want the absolute performance ceiling, or direct replacement discs for cars already equipped with factory CCB — Triton has an engineered, direct-fit solution for every RS7 configuration.
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