
2004-2010 BMW 6 Series / M6 (E63/E64) CCB Big Brake Kit | Brembo GT500 6-Piston
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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2004-2010 BMW 6 Series / M6 (E63/E64) CCB Big Brake Kit — Genuine Brembo OEM Ford Shelby GT500 Mustang 6-Piston Caliper Front + Genuine Brembo GT4 Rear Setup
The 2004-2010 BMW 6 Series and M6 E63/E64 put heavy heat load into the front brakes during repeated high-speed stops, and open-wheel cars show iron dust quickly. This StopFlex kit pairs a 380mm front carbon-ceramic rotor with the Genuine Brembo OEM Ford Shelby GT500 Mustang 6-Piston Caliper, plus 355mm rear carbon-ceramic rotors with Brembo 4-piston options, to add thermal capacity while reducing rotating mass and brake dust. Each kit is built around the buyer’s exact trim, wheel package, and clearance data, not a generic E63/E64 assumption.
- 380mm front carbon-ceramic rotors require 19-inch or larger wheels on the E63/E64; spoke clearance is checked separately from wheel diameter.
- Front braking is handled by the Genuine Brembo OEM Ford Shelby GT500 Mustang 6-Piston Caliper, matched to StopFlex carbon-ceramic rotors, pads, hats, hardware, and lines.
- Rear braking uses 355mm carbon-ceramic rotors with Brembo V4, GT4, or GTS4 4-piston caliper options to keep the rear axle matched to the front upgrade.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | BMW 6 Series / M6 (E63/E64) |
| Model years | 2004-2010 |
| Front setup | Genuine Brembo OEM Ford Shelby GT500 Mustang 6-Piston Caliper / 380mm |
| Rear setup | Brembo V4 / GT4 / GTS4 4-Piston Caliper Options / 355mm |
| 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 axle uses the Genuine Brembo OEM Ford Shelby GT500 Mustang 6-Piston Caliper, giving this E63/E64 kit a rigid six-piston Brembo caliper with broad pad support for consistent clamping and pedal response. It is an OEM-derived Brembo performance caliper, not an unbranded casting, and it is paired here with a 380mm carbon-ceramic rotor and vehicle-specific mounting hardware.
Rear Caliper (Balance)
The rear axle uses Brembo V4 / GT4 / GTS4 4-Piston Caliper Options on 355mm carbon-ceramic rotors: V4 is the Genuine Brembo OEM Cadillac CTS-V 4-Piston Caliper, GT4 is the Genuine Brembo GT | M4 4-Piston Caliper, and GTS4 is the Genuine Brembo GT | S4 4-Piston Caliper. The rear package is selected to support brake balance and rear-axle stability under hard braking while preserving the E63/E64 cable-style parking brake system where applicable.
Front & rear, engineered together: The 380mm front and 355mm rear packages are engineered together so piston area, rotor diameter, pad selection, and hat offset work as a complete brake system. That matters on the E63/E64 because a front-only caliper jump can change pedal travel and front-to-rear brake behavior if the rear axle is left unmatched.
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 Brembo OEM Ford Shelby GT500 Mustang 6-Piston Caliper |
| Front CCB rotors | 380mm |
| Rear calipers | Brembo V4 / GT4 / GTS4 4-Piston Caliper Options |
| Rear CCB rotors | 355mm |
| 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. |
| Rear caliper option mapping | V4 = Genuine Brembo OEM Cadillac CTS-V 4-Piston Caliper — 355 mm rotor GT4 = Genuine Brembo GT | M4 4-Piston Caliper — 355 mm rotor GTS4 = Genuine Brembo GT | S4 4-Piston Caliper — 355 mm rotor |
FAQ
Will this kit fit my exact BMW 645Ci, 650i, or M6?
Fitment is engineered to the confirmed car, not assumed from the E63/E64 chassis name. Standard 6 Series and M6 variants can differ in upright, hub, and wheel-offset clearance, so StopFlex specifies the brackets, rotor-hat offsets, and caliper mounting for your exact trim before production.
What wheels are required for the 380mm front rotor?
The 380mm front rotor requires 19-inch or larger wheels. Wheel diameter alone is not enough; the Genuine Brembo OEM Ford Shelby GT500 Mustang 6-Piston Caliper also needs spoke clearance, so wheel model, width, offset, and a clearance check are part of the order process.
Does this rear kit work with the factory parking brake?
Yes, the E63/E64 uses a mechanical parking brake arrangement rather than an electronic parking brake caliper. The rear package is built around that configuration while adding the selected Brembo V4, GT4, or GTS4 4-piston service brake caliper on a 355mm carbon-ceramic rotor.
Why choose carbon-ceramic rotors on an E63/E64 6 Series or M6?
Carbon-ceramic rotors reduce brake dust and rotating mass compared with iron rotors and maintain friction stability under repeated heat cycles. On a heavy grand-touring BMW like the E63/E64, the payoff is cleaner wheels, better heat tolerance, and less front-end mass with a properly matched caliper and pad package.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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