2017-2023 BMW 5 Series / M5 (G30/G31/F90) 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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2017-2023 BMW 5 Series / M5 (G30/G31/F90) CCB Big Brake Kit — Genuine Brembo OEM Ford Shelby GT500 Mustang 6-Piston Caliper Front + Genuine Brembo GT4 Rear Setup
G30/G31 5 Series and F90 M5 owners usually shop carbon-ceramic brakes to cut iron-rotor dust, reduce rotating mass, and keep pedal feel stable when a heavy BMW is driven hard. This StopFlex kit uses a Genuine Brembo OEM Ford Shelby GT500 Mustang 6-Piston Caliper over a 380 mm front carbon-ceramic rotor, with 355 mm rear carbon-ceramic rotors and Brembo 4-piston rear options matched to the exact trim. Because standard 5 Series and F90 M5 hardware can differ at the knuckle, hub, and wheel package, StopFlex engineers the brackets, hats, and caliper position for the confirmed car rather than assuming one G30/G31/F90 fitment.
- 380 mm front carbon-ceramic rotors require 19-inch or larger wheels on this G30/G31/F90 kit; spoke clearance is still checked because BMW wheel ET and face design vary by trim and package.
- Front braking is built around the exact Genuine Brembo OEM Ford Shelby GT500 Mustang 6-Piston Caliper, paired with StopFlex carbon-ceramic rotors, pads, hats, hardware, and lines.
- Rear braking uses 355 mm carbon-ceramic rotors with V4, GT4, or GTS4 Brembo 4-piston options, selected to suit the confirmed 5 Series or M5 configuration.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | BMW 5 Series / M5 (G30/G31/F90) |
| Model years | 2017-2023 |
| 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 BMW a rigid fixed 6-piston caliper layout for strong clamp distribution across the front pad. Its OEM Brembo provenance matters because it comes from a high-output production performance application, not an anonymous cosmetic caliper. StopFlex mounts it with vehicle-specific brackets and rotor-hat geometry so the 380 mm carbon-ceramic rotor runs in the correct radial and lateral position for the confirmed G30, G31, or F90 trim.
Rear Caliper (Balance)
The rear axle uses Brembo V4 / GT4 / GTS4 4-Piston Caliper Options with a 355 mm carbon-ceramic rotor: 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 stability while preserving the factory EPB function where the confirmed rear configuration requires it.
Front & rear, engineered together: This is engineered as a front-and-rear system so piston area, rotor diameter, pad selection, and carbon-ceramic thermal behavior are matched instead of over-braking the front axle alone. On the G30/G31/F90 family, that matters because a standard 5 Series and an M5 can share a chassis name while using different uprights, hubs, and wheel-clearance envelopes.
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 |
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 G30, G31, or F90 trim?
Fitment is confirmed per car, not by chassis name alone. StopFlex checks the exact year, trim, factory brake package, hub/upright geometry, wheel size, wheel offset, and spoke profile before engineering the brackets, rotor hats, and caliper mounting for your BMW.
What wheel size do I need for the 380 mm front rotor?
The 380 mm front rotor requires 19-inch or larger wheels; wheels under 19 inches will not clear it. Even with 19-inch or larger BMW wheels, spoke clearance must be verified because the Genuine Brembo OEM Ford Shelby GT500 Mustang 6-Piston Caliper has a different outer profile than the factory caliper.
Will the electronic parking brake and Auto Hold still work?
The G30/G31 5 Series and F90 M5 use a factory electronic parking brake, so rear fitment is reviewed around EPB retention for the confirmed configuration. StopFlex verifies the rear caliper option and parking-brake requirements before production rather than assuming every 5 Series and M5 rear setup is identical.
Why replace the BMW iron or OEM carbon setup with this StopFlex CCB kit?
Carbon-ceramic rotors reduce brake dust and rotating mass compared with iron rotors, and they provide better heat stability during repeated high-speed braking. For owners replacing worn or damaged OEM carbon-ceramic components, this kit also gives a complete matched package: calipers, carbon-ceramic rotors, pads, hats, hardware, and lines.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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