2007-2013 Mercedes-Benz S-Class / AMG (W221/V221) 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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2007-2013 Mercedes-Benz S350 / S400 / S500 / S550 / S600 / S63 / S65 (W221/V221) CCB Big Brake Kit — Genuine Akebono OEM Porsche 10-Piston (10N) Caliper Front + Genuine Brembo OEM Porsche 19Z 4-Piston Caliper Rear Setup
The W221/V221 S-Class is a heavy, high-speed sedan, and owners shopping this kit are usually trying to reduce repeated iron-rotor heat stress, brake dust, and mass without guessing on AMG-versus-non-AMG fitment. This StopFlex kit uses a 420mm front carbon-ceramic rotor with a Genuine Akebono OEM Porsche 10-Piston (10N) Caliper and a 410mm rear carbon-ceramic rotor with a Genuine Brembo OEM Porsche 19Z 4-Piston Caliper. Each order is engineered to the confirmed S350, S400, S500, S550, S600, S63, or S65 configuration so the brackets, hat offsets, and caliper position match the exact car, not only the W221/V221 chassis name.
- 420mm front carbon-ceramic rotors require 21-inch or larger wheels on the W221/V221 S-Class; spoke clearance must still be checked before production.
- Front braking is handled by the Genuine Akebono OEM Porsche 10-Piston (10N) Caliper, paired with StopFlex carbon-ceramic rotors, pads, hats, hardware, and lines.
- Rear braking uses a 410mm carbon-ceramic rotor and Genuine Brembo OEM Porsche 19Z 4-Piston Caliper to match the large front upgrade instead of leaving the rear system mechanically underbuilt.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Mercedes-Benz S350 / S400 / S500 / S550 / S600 / S63 / S65 (W221/V221) |
| Model years | 2007-2013 |
| Front setup | Genuine Akebono OEM Porsche 10-Piston (10N) Caliper / 420mm |
| Rear setup | Genuine Brembo OEM Porsche 19Z 4-Piston Caliper / 410mm |
| 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 axle uses the exact Genuine Akebono OEM Porsche 10-Piston (10N) Caliper, a high-piston-count fixed caliper chosen to spread clamping load across the pad and support a firm, controlled pedal on the heavy W221/V221 chassis. Its OEM Porsche provenance matters because the caliper is derived from a production performance application rather than an anonymous universal casting. StopFlex positions this caliper around a 420mm carbon-ceramic rotor with trim-specific brackets and rotor-hat offsets for the confirmed S-Class model.
Rear Caliper (Balance)
The rear axle uses the Genuine Brembo OEM Porsche 19Z 4-Piston Caliper with a 410mm carbon-ceramic rotor to keep rear torque contribution and braking stability in proportion to the 420mm 10-piston front setup. Because the W221/V221 uses an electronic parking brake system, rear packaging is confirmed during order engineering so parking-brake function is addressed with the vehicle-specific configuration.
Front & rear, engineered together: This is engineered as a front-and-rear brake system, not a front-only caliper swap. Matching the 420mm front and 410mm rear carbon-ceramic packages lets StopFlex control brake bias, pad area, rotor thermal capacity, line routing, and hat offset together for the buyer's exact S-Class trim.
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 Porsche 10-Piston (10N) Caliper |
| Front CCB rotors | 420mm |
| Rear calipers | Genuine Brembo OEM Porsche 19Z 4-Piston Caliper |
| Rear CCB rotors | 410mm |
| 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. |
FAQ
Will this kit fit my exact W221/V221 S-Class trim?
StopFlex does not treat every W221/V221 as the same brake package. S350, S400, S500, S550, S600, S63, and S65 cars can differ in knuckle, hub, wheel offset, and brake-clearance details, so brackets, rotor hats, caliper mounting, lines, and hardware are engineered after your exact model and trim are confirmed.
What wheel size is required for the 420mm front rotor?
The 420mm front rotor requires 21-inch or larger wheels. Wheel diameter alone is not enough; StopFlex also checks spoke clearance for the Genuine Akebono OEM Porsche 10-Piston (10N) Caliper before the kit is built.
Will the electronic parking brake still work?
The W221/V221 S-Class has a factory electronic parking brake system, so rear fitment is handled as part of the vehicle-specific engineering process. StopFlex confirms the rear configuration before production to address EPB compatibility with the 410mm rear rotor and Genuine Brembo OEM Porsche 19Z 4-Piston Caliper package.
Why switch this S-Class from iron brakes to carbon-ceramic?
Carbon-ceramic rotors reduce brake dust, resist heat-related fade, and cut rotating mass compared with a conventional iron big-brake package. On a heavy W221/V221 used for fast road driving, repeated highway braking, or show-wheel fitment, the payoff is cleaner wheels, stronger heat capacity, and less mass at each corner.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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