2022-2026+ Audi e-tron GT / RS e-tron GT CCB Big Brake Kit | Akebono 10N 10-Piston
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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2022-2026+ Audi e-tron GT / RS e-tron GT CCB Big Brake Kit — Genuine Akebono OEM Audi RS 10-Piston (10N) Caliper Front + TTSPORT EP4 4-Piston Caliper with EPB Rear Setup
The 2022-2026+ Audi e-tron GT and RS e-tron GT put heavy EV mass, regenerative-brake blending, and open-wheel brake-dust visibility on the same brake package, so owners usually shop carbon ceramic for heat control, lower dust, and sharper response under repeated high-speed stops. This StopFlex kit uses a 420mm front carbon-ceramic rotor with the Genuine Akebono OEM Audi RS 10-Piston (10N) Caliper and a 380mm rear carbon-ceramic rotor with the TTSPORT EP4 4-Piston Caliper with EPB, giving the car more thermal capacity at both axles while retaining rear parking-brake functionality. Each kit is built for the confirmed e-tron GT or RS e-tron GT trim, with bracket geometry, rotor-hat offset, and caliper position matched to that specific car and wheel package.
- 420mm is the largest front rotor in this kit, so the car needs 21-inch or larger wheels and a spoke-clearance check for the Akebono 10-piston caliper body.
- The front axle uses the Genuine Akebono OEM Audi RS 10-Piston (10N) Caliper with a StopFlex carbon-ceramic rotor to add heat capacity and reduce brake dust versus iron friction surfaces.
- The rear axle uses a 380mm carbon-ceramic rotor with a TTSPORT EP4 4-Piston Caliper with EPB, so rear thermal capacity is upgraded without deleting the electronic parking brake.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Audi e-tron GT / RS e-tron GT |
| Model years | 2022-2026+ |
| Front setup | Genuine Akebono OEM Audi RS 10-Piston (10N) Caliper / 420mm |
| Rear setup | TTSPORT EP4 4-Piston Caliper with EPB / 380mm |
| Page type | Complete CCB kit upgrade |
| Minimum wheel size | 21" (for the 420 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 420 mm front rotor, so the minimum wheel size is 21". Wheels under 21" 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 front upgrade is the Genuine Akebono OEM Audi RS 10-Piston (10N) Caliper, a 10-piston OEM-derived Audi RS caliper selected for high clamp distribution across the pad and a firm, repeatable pedal under heavy EV braking loads. Its Akebono provenance matters because this is not an anonymous universal race caliper; it is a genuine OEM Audi RS-based unit paired here with a 420mm StopFlex carbon-ceramic rotor, matched hat offset, hardware, pads, lines, and vehicle-specific mounting geometry. The caliper’s multi-piston fixed design supports stable pad contact across the large rotor face instead of concentrating load through a smaller sliding-caliper layout.
Rear Caliper (Balance)
The rear upgrade is the TTSPORT EP4 4-Piston Caliper with EPB on a 380mm StopFlex carbon-ceramic rotor, adding rear-axle brake capacity while preserving electronic parking-brake operation. Its 4 hydraulic service pistons support braking stability and rear bias control, while the dedicated EPB actuator piston keeps OE-style parking-brake convenience.
Front & rear, engineered together: This kit is engineered as a front-and-rear system because a 420mm 10-piston front package needs the rear axle matched for rotor diameter, piston area, and parking-brake integration rather than left as an afterthought. The TTSPORT EP4 shares the EP4S engineering concept: four hydraulic service pistons plus a dedicated EPB actuator piston, with two-piece forged-aluminum construction and heat-insulated piston design, so the rear upgrade contributes real thermal capacity while keeping EPB function.
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 10-Piston (10N) Caliper |
| Front CCB rotors | 420mm |
| 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 kit fit my exact e-tron GT or RS e-tron GT trim?
Fitment is confirmed per car, not by assuming every e-tron GT chassis is the same. StopFlex matches the brackets, caliper mounting, rotor-hat offsets, and line routing to your confirmed model year, trim, brake package, and wheel specification before the kit is built.
What wheels are required for the 420mm front rotor?
The 420mm front rotor requires 21-inch or larger wheels, and wheel diameter alone is not enough. The Genuine Akebono OEM Audi RS 10-Piston (10N) Caliper also needs spoke clearance, so wheel model, width, offset, and any spacer plan should be checked before ordering.
Will the electronic parking brake still work?
Yes. This kit uses the TTSPORT EP4 4-Piston Caliper with EPB at the rear, which provides hydraulic service braking plus a dedicated EPB actuator piston so the Audi electronic parking-brake function is retained.
Why switch this Audi to carbon-ceramic rotors?
Carbon-ceramic rotors reduce brake dust, resist heat buildup in repeated high-speed stops, and lower rotating mass compared with equivalent iron rotor packages. On the e-tron GT and RS e-tron GT, that matters because the car is heavy, fast, and often runs open 21-inch wheels that show dust and rotor condition clearly.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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