2015-2023 Audi TT / TTS / TT RS (8S) 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.
2015-2023 Audi TT / TTS / TT RS (8S) CCB Big Brake Kit — Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper Front + TTSPORT EP4 4-Piston Caliper with EPB Rear Setup
The 8S Audi TT, TTS, and TT RS put a compact, front-heavy MQB-based chassis on sticky tires, so repeated braking can expose heat fade, iron-rotor dust, and replacement-cost concerns. This StopFlex kit pairs a Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper with 380mm front carbon-ceramic rotors and a TTSPORT EP4 4-Piston Caliper with EPB on 380mm rear rotors for higher thermal capacity, lower rotating mass, and cleaner open-wheel appearance. Brackets, rotor-hat offsets, caliper mounting, lines, pads, and hardware are specified for the customer’s confirmed TT, TTS, or TT RS trim rather than assumed from the 8S chassis name.
- 380mm front and rear carbon-ceramic rotors require 19-inch or larger wheels on the 2015-2023 Audi TT / TTS / TT RS 8S; spoke clearance must still be checked before production.
- The front axle uses the exact Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper, giving the compact 8S chassis a six-piston fixed-caliper upgrade over smaller factory brake packages.
- The rear axle uses a TTSPORT EP4 4-Piston Caliper with EPB so the 8S keeps electronic parking-brake function while adding rear thermal capacity to match the 380mm front setup.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Audi TT / TTS / TT RS (8S) |
| Model years | 2015-2023 |
| 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 front upgrade is the Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper, a six-piston fixed caliper selected to spread clamping load across the pad and support a firmer, more consistent pedal during repeated high-speed stops. Its credibility comes from its OEM Audi RS/Akebono provenance rather than an unproven generic casting. StopFlex engineers the front brackets, carbon-ceramic rotor hats, pads, lines, and mounting hardware around the buyer’s confirmed TT, TTS, or TT RS 8S trim.
Rear Caliper (Balance)
The rear upgrade is the TTSPORT EP4 4-Piston Caliper with EPB, which adds four hydraulic service pistons at the rear axle while preserving factory electronic parking-brake operation. On this 380mm rear setup, the rear caliper helps the car use rear thermal capacity without treating the back axle as an afterthought.
Front & rear, engineered together: This kit is specified as a front-and-rear system because a 380mm six-piston front upgrade needs matching rear piston area, rotor diameter, pad compound, and hat offset to maintain stable brake bias. The TTSPORT EP4 architecture uses four hydraulic service pistons plus a dedicated EPB actuator piston, so the rear upgrade supports braking balance and keeps OE parking-brake convenience.
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 kit fit my exact 8S TT, TTS, or TT RS?
Fitment is not treated as a universal 8S bolt-on. StopFlex confirms the exact model year, trim, hub and knuckle geometry, wheel specs, and clearance data before building the brackets, rotor hats, caliper mounts, lines, and hardware for that car.
What wheel size do I need for the 380mm carbon-ceramic rotors?
The minimum wheel diameter is 19 inches because the largest rotor in this kit is 380mm. Wheel offset and spoke shape also matter, so StopFlex checks spoke-to-caliper clearance for the Genuine Akebono OEM Audi RS 6-Piston (8N) Caliper before production.
Will the electronic parking brake still work?
Yes. The rear TTSPORT EP4 4-Piston Caliper with EPB is built for modern EPB-equipped platforms and uses a dedicated EPB actuator piston, so the 8S TT family keeps factory parking-brake convenience with the rear big-brake conversion.
Why choose carbon-ceramic on an 8S Audi TT instead of iron rotors?
Carbon-ceramic rotors reduce brake dust, cut rotating and unsprung mass compared with comparable iron hardware, and handle repeated heat cycles better in aggressive street or track use. For owners replacing worn iron brakes or expensive OEM carbon-ceramic parts, the StopFlex kit also provides a complete matched package with pads, hats, lines, and hardware.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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