
2020-2026+ Toyota GR Yaris CCB Big Brake Kit | Brembo GT6 6-Piston
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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2020-2026+ Toyota GR Yaris CCB Big Brake Kit — Genuine Brembo GT6 Front + Genuine Brembo GT4 Rear Setup
The 2020-2026+ Toyota GR Yaris is a short-wheelbase AWD homologation car that can overwork iron brakes quickly in repeated track sessions, especially when heat, pad dust, and front-end response matter. This StopFlex Kit Upgrade replaces the factory brake package with 380 mm carbon-ceramic rotors, Brembo V6 / GT6 / GTS6 6-Piston Caliper Options in front, and Brembo V4 / GT4 / GTS4 4-Piston Caliper Options in rear, with pads, hats, hardware, and lines engineered for the exact confirmed trim. The 380 mm rotor package requires 19 inch wheels or larger, with spoke clearance checked before production.
- 380 mm carbon-ceramic front and rear rotors are the largest rotor size in this GR Yaris kit, so wheels under 19 inches will not clear the package.
- Front caliper choices are V6, GT6, or GTS6 6-piston Brembo options, each paired to a 380 mm carbon-ceramic rotor for repeated high-speed braking loads.
- The GR Yaris GXPA16 uses market-specific trims and performance packages, so StopFlex confirms the exact trim before machining brackets and rotor-hat offsets.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Toyota GR Yaris |
| Model years | 2020-2026+ |
| Front setup | Brembo V6 / GT6 / GTS6 6-Piston Caliper Options / 380mm |
| Rear setup | Brembo V4 / GT4 / GTS4 4-Piston Caliper Options / 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 axle uses Brembo V6 / GT6 / GTS6 6-Piston Caliper Options, giving the GR Yaris a six-piston fixed-caliper layout for stronger clamp distribution and a firmer, more consistent pedal under heat. The buyer chooses V6 = Genuine Brembo OEM Cadillac CTS-V 6-Piston Caliper with 380 mm rotor, GT6 = Genuine Brembo GT | M6 6-Piston Caliper with 380 mm rotor, or GTS6 = Genuine Brembo GT | S6 6-Piston Caliper with 380 mm rotor. Each front option is built around a genuine Brembo caliper and a StopFlex carbon-ceramic rotor, hat, pad, line, and hardware package matched to the confirmed GR Yaris configuration.
Rear Caliper (Balance)
The rear axle uses Brembo V4 / GT4 / GTS4 4-Piston Caliper Options with 380 mm carbon-ceramic rotors to keep rear braking contribution matched to the front upgrade. Rear choices are V4 = Genuine Brembo OEM Cadillac CTS-V 4-Piston Caliper, GT4 = Genuine Brembo GT | M4 4-Piston Caliper, or GTS4 = Genuine Brembo GT | S4 4-Piston Caliper, each paired with the 380 mm rotor package.
Front & rear, engineered together: The front and rear calipers, rotor diameters, pad shapes, hat offsets, and hydraulic line package are specified together so the GR Yaris does not receive a front-heavy brake change that disrupts stability. Matching the 6-piston front package with a 4-piston rear package helps maintain predictable brake bias during trail braking, ABS intervention, and repeated track deceleration.
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 | Brembo V6 / GT6 / GTS6 6-Piston Caliper Options |
| Front CCB rotors | 380mm |
| Rear calipers | Brembo V4 / GT4 / GTS4 4-Piston Caliper Options |
| 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. |
| Front caliper option mapping | V6 = Genuine Brembo OEM Cadillac CTS-V 6-Piston Caliper — 380 mm rotor GT6 = Genuine Brembo GT | M6 6-Piston Caliper — 380 mm rotor GTS6 = Genuine Brembo GT | S6 6-Piston Caliper — 380 mm rotor |
| Rear caliper option mapping | V4 = Genuine Brembo OEM Cadillac CTS-V 4-Piston Caliper — 380 mm rotor GT4 = Genuine Brembo GT | M4 4-Piston Caliper — 380 mm rotor GTS4 = Genuine Brembo GT | S4 4-Piston Caliper — 380 mm rotor |
FAQ
Will this 380 mm kit fit my exact GR Yaris trim?
Fitment is not treated as a platform-wide GXPA16 bolt-on. StopFlex confirms your exact year, market trim, hub/upright details, existing brakes, and wheel data before engineering the brackets, rotor-hat offsets, and caliper mounting for your car.
What wheel size do I need for the 380 mm carbon-ceramic rotors?
This kit requires 19 inch or larger wheels because the front and rear rotors are 380 mm. Wheel diameter alone is not enough; StopFlex also checks barrel shape, spoke clearance, offset, and caliper template clearance before production.
Does the GR Yaris have an electronic parking brake to retain?
No. The 2020-2026+ Toyota GR Yaris uses a manual handbrake layout rather than an electronic parking brake, so this rear package is engineered around the car’s mechanical parking-brake configuration instead of EPB motor retention.
Why choose carbon-ceramic instead of another iron big brake kit?
Carbon-ceramic rotors reduce brake dust, resist heat-related fade, and cut rotating unsprung mass compared with an equivalent iron rotor package. On a GR Yaris used for track days or fast road driving, that targets cleaner wheels, more stable pedal feel, and sharper front-end response.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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