2005-2011 Audi A6 / S6 / RS6 (C6) CCB Big Brake Kit | Akebono 8N 6-Piston
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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2005-2011 Audi A6 / S6 / RS6 (C6) CCB Big Brake Kit — Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper Front + TTSPORT EP4 4-Piston Caliper with EPB Rear Setup
This StopFlex CCB kit is for C6 A6, S6 and RS6 owners who want more heat capacity than the factory brake package, less iron dust on open wheels, and lower rotating mass without losing the car’s electronic parking brake function. The package pairs 380mm carbon-ceramic rotors with Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper fronts and TTSPORT EP4 4-Piston Caliper with EPB rears. Every kit is built around the buyer’s confirmed C6 trim, because A6, S6 and RS6 knuckle geometry, hub position, and wheel clearance cannot be treated as one platform-wide fitment.
- 380mm front and rear carbon-ceramic rotors require 19-inch or larger wheels; spoke clearance must still be checked against the Akebono front caliper and EP4 rear caliper profile.
- The front axle uses the exact Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper, matched to carbon-ceramic rotor hats and trim-specific brackets for the confirmed C6 application.
- The rear axle keeps EPB operation through the TTSPORT EP4 4-Piston Caliper with EPB, adding real rear-rotor thermal capacity instead of leaving the rear brake package behind the front upgrade.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Audi A6 / S6 / RS6 (C6) |
| Model years | 2005-2011 |
| Front setup | Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper / 380mm |
| Rear setup | TTSPORT EP4 4-Piston Caliper with EPB / 380mm |
| Page type | Complete CCB kit upgrade |
| Minimum wheel size | 19" (for the 380 mm front rotor) |
Every StopFlex kit is bespoke-engineered for your exact model and trim — the brackets, rotor-hat offsets, and caliper mounting are matched to your specific car, not assumed from the platform. This matters because trims that share a chassis name can differ mechanically: a pure M or performance variant often carries different front knuckles/uprights, hub geometry, and wheel axial (ET) clearance than the standard models in the same family, so a bracket and hat offset that bolt onto one are not the same parts that fit the other. StopFlex supplies the calipers, pads, rotor hats, floating hardware, and brake lines as a matched system built to your confirmed trim. Cars with modified knuckles, modified uprights, or non-factory suspension mounting points must be reviewed before ordering and are not treated as direct-fit.
This setup uses a 380 mm front rotor, so the minimum wheel size is 19". Wheels under 19" will not clear the caliper and rotor, and spoke profile and offset affect clearance too — confirm your exact wheels before ordering.
| Wheel Size (Standard) | Disc Range |
|---|---|
| 15" | 260 mm – 285 mm |
| 16" | 285 mm – 300 mm |
| 17" | 300 mm – 330 mm |
| 18" | 330 mm – 355 mm |
| 19" | 355 mm – 380 mm |
| 20" | 380 mm – 400 mm |
| 21" | 400 mm – 420 mm |
| 22" | 420 mm – 440 mm |
Caliper Overview — Front & Rear Balance
Front Caliper (Primary Upgrade)
The Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper gives the C6 front axle a six-piston fixed-caliper layout for more consistent pad loading and firmer pedal response than a smaller sliding-caliper package. Its credibility comes from being a genuine OEM-derived Audi RS/Akebono unit rather than an unbranded race-style shell. StopFlex pairs it with 380mm carbon-ceramic rotors, matched hats, correct mounting hardware, and trim-specific brackets for the buyer’s exact A6, S6 or RS6 configuration.
Rear Caliper (Balance)
The TTSPORT EP4 4-Piston Caliper with EPB adds rear-axle braking support so the 380mm front upgrade is not working against an undersized rear package. It uses four hydraulic service pistons plus a dedicated EPB actuator piston, so the C6 retains electronic parking brake convenience while gaining a 380mm rear carbon-ceramic rotor package.
Front & rear, engineered together: This kit is engineered as a front-and-rear system so piston area, rotor diameter, hat offset, and caliper placement are matched to the confirmed trim instead of adding front brake torque in isolation. The EP4 rear caliper preserves OE-style EPB function while helping rear thermal capacity and braking stability match the Akebono 6-piston, 380mm front setup.
Make It Yours — Color & Logo Customization
Every StopFlex kit-upgrade order can be finished with custom caliper colors, a custom caliper logo, and custom rotor hat colors, so the brake package matches your exact build instead of a fixed off-the-shelf look.
- Custom caliper color
- Custom caliper logo
- Custom rotor hat color
Why StopFlex CCB
Lower Unsprung Mass
StopFlex carbon-ceramic rotors are engineered to reduce rotor mass versus comparable iron discs, helping the suspension react cleaner and the steering feel more precise.
High-Temperature Stability
The carbon-silicon-carbide matrix is built for stable braking behavior at temperatures that can push iron rotors into heavy fade.
Rust-Free Rotor Surface
Carbon ceramic does not form orange flash rust after rain, washing, or storage, keeping the visible rotor face cleaner behind open wheels.
Long Street-Service Potential
In normal road use with matched pads and proper bedding, StopFlex CCB rotors are designed for far longer service life than typical iron replacement rotors.
Low Visible Dust
When paired with matched StopFlex pads, the system produces very low visible brake dust compared with conventional iron rotor and pad combinations.
Premium Ceramic-Glaze Appearance
StopFlex's proprietary coating creates a bright, high-end ceramic-glaze finish with subtle glaze texture and a more premium visual character behind open wheels.
Street-Usable Cold Bite
Street Spec and Track-Day Spec rotors are designed for normal first-stop road use, including cold-weather operation. Motorsport Spec is the competition-focused exception.
Continuous Fiber Reinforcement
Long-fiber carbon ceramic construction improves structural strength and thermal durability versus chopped-fiber approaches.
Heat Management Note
Carbon ceramic rotors tolerate extreme surface temperature, but they do not remove every heat-management requirement. During repeated hard stops, heat can still soak into pads, fluid, seals, calipers, wheels, and nearby components. For long track sessions, mountain descents, or sustained aggressive driving, brake cooling and high-temperature fluid are still recommended.
Street / Track-Day / Motorsport Rotor Options
Street Spec
Ceramic coating, cross-drilled face, and large cooling channels.
Best for daily driving and premium street builds that need clean cold bite, low dust, corrosion-free appearance, and long service life.
Track-Day Spec
Ceramic coating, blank face, and honeycomb cooling channels.
Best for fast-road and track-day use where repeated braking stability matters more than maximum visual drilling style.
Motorsport Spec
Uncoated blank face with honeycomb cooling channels.
Best for race-focused builds that run competition pads, high-temperature fluid, cooling strategy, and a proper warm-up window. Not the default street choice.
Package Scope
| Item | Details |
|---|---|
| Front calipers | Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper |
| Front CCB rotors | 380mm |
| Rear calipers | TTSPORT EP4 4-Piston Caliper with EPB |
| Rear CCB rotors | 380mm |
| CCB brake pads | Matched for the supplied StopFlex carbon ceramic rotors |
| Rotor hats and floating hardware | Vehicle-specific hardware package |
| Brake lines | Included for complete kit-upgrade orders |
| Color customization | Custom caliper colors, a custom caliper logo, and custom rotor hat colors are available for every kit-upgrade order. |
| Order scope | Default listing is full-car set when front and rear are specified. Front-only or rear-only orders can be arranged after confirmation. |
EPB & Rear Caliper Options
This vehicle leaves the factory with an electronic parking brake (EPB) built into the rear brake, so the rear of the kit is built to keep that EPB working. There are two rear paths. The first is a dual-caliper rear: a main performance caliper handles braking while a dedicated EPB actuator caliper is retained alongside it, so the electronic parking brake, auto-hold, and hill-start assist all keep working; on this path the rear performance caliper can be the TTSPORT EP4 / EP4S 4-piston caliper. The second is an EPB-integrated caliper, a single rear caliper with the electromechanical parking-brake motor built in for a cleaner install with fewer parts behind the wheel; on this path the rear is the TTSPORT EP4 / EP4S 4-piston caliper with integrated EPB. Which path fits best depends on your exact trim and EPB configuration, your budget, your appearance preference, and your wheel size and spoke clearance. Confirm your car's rear-brake configuration with StopFlex before ordering so the correct EPB-compatible rear option is built for your kit.
| Rear option | What it is | Rear caliper | Best when |
|---|---|---|---|
| Dual caliper (EPB retained) | Performance caliper plus a dedicated EPB actuator caliper, both fitted on the rear, so the factory electronic parking brake keeps working. | TTSPORT EP4 / EP4S 4-Piston Caliper | You want guaranteed factory EPB, auto-hold, and hill-start behavior preserved. |
| EPB-integrated caliper | A single rear caliper with the electromechanical parking-brake motor built in, for a cleaner install with fewer parts behind the wheel. | TTSPORT EP4 / EP4S 4-Piston Caliper with integrated EPB | You want a cleaner single-caliper rear with full EPB function. |
TTSPORT EP4S rear caliper specification (the EP4 shares the same engineering, slightly more compact):
| Specification | EP4S |
|---|---|
| Axle position | Rear |
| Piston count | 4 hydraulic + 1 EPB actuator |
| Piston type | Two-piece heat-insulated, dust boots + EPB actuator |
| Piston diameter | 28 mm × 4 / 27 mm × 1 |
| Total piston area | 30.4 cm² per caliper |
| Manufacturing process | Two-piece forged aluminum body |
| Net weight | 4.50 kg per caliper (no pads) |
| Surface finish | High-temperature gloss coating |
| Recommended wheel size | 18 in or larger |
FAQ
Will this 380mm kit fit my exact C6 A6, S6 or RS6?
Fitment is not treated as a generic C6 bolt-on. StopFlex builds the brackets, rotor-hat offsets, caliper position, lines, and hardware after your exact year, trim, drivetrain, original brake package, and wheel data are confirmed.
What wheel size do I need for the 380mm rotors?
The 380mm rotor package requires 19-inch or larger wheels. Wheel diameter alone is not enough; spoke shape, wheel offset, and inner-barrel clearance must be checked against the Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper and TTSPORT EP4 rear caliper.
Will the electronic parking brake still work?
Yes, this rear package uses the TTSPORT EP4 4-Piston Caliper with EPB. The caliper has four hydraulic service pistons for braking and a dedicated EPB actuator piston so the C6 can retain electronic parking brake operation.
Why choose carbon-ceramic rotors on a C6 Audi instead of iron rotors?
Carbon-ceramic rotors reduce brake dust, resist heat fade better in repeated high-speed stops, and cut rotating mass compared with equivalent-size iron rotors. On a heavy C6 A6, S6 or RS6, those gains matter most when the car is driven hard or fitted with open-spoke wheels that show iron dust quickly.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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