2020-2026+ Alfa Romeo Giulia Carbon Ceramic 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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Will This Fit My Car?
Full Upgrade CCB Big Brake Kits (With Calipers) for the 2020-2026+ Alfa Romeo Giulia. This page's exact brake setup:
| Model Years | Front Setup | Rear Setup | Min. Wheel Size |
|---|---|---|---|
| 2020-2026+ |
Option 1: Brembo OEM Cadillac CTS-V 6-Piston Caliper — 380/405 mm rotor Option 2: Brembo GT | M6 6-Piston Caliper — 380/405 mm rotor Option 3: Brembo GT | S6 6-Piston Caliper — 380/405 mm rotor |
Option 1: Brembo OEM Cadillac CTS-V 4-Piston Caliper — 355 mm rotor Option 2: Brembo GT | M4 4-Piston Caliper — 355 mm rotor Option 3: Brembo GT | S4 4-Piston Caliper — 355 mm rotor |
19" |
Fitment here is bespoke: brackets, hat offsets, and caliper mounting are engineered for your exact model and trim rather than copied across the platform. Two trims with the same chassis code can still differ in knuckles, hub geometry, and wheel ET clearance — which is why we confirm your trim first, then build the matched system of calipers, pads, rotor hats, floating hardware, and lines for it. Modified knuckles, uprights, or non-factory suspension points require review before ordering.
The 380 mm rotor sets the minimum wheel size at 19" — smaller wheels will not clear the caliper and rotor. Spoke profile and offset also affect clearance; 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 |
What's in the Box
| Item | Details |
|---|---|
| Product type | Full Upgrade CCB Big Brake Kits (With Calipers) |
| Front calipers | Option 1: Brembo OEM Cadillac CTS-V 6-Piston Caliper — 380 / 405 mm rotor Option 2: Brembo GT | M6 6-Piston Caliper — 380 / 405 mm rotor Option 3: Brembo GT | S6 6-Piston Caliper — 380 / 405 mm rotor OE / Part No.: L 172-2521 · R 172-2522 |
| Rear calipers |
Option 1: Brembo OEM Cadillac CTS-V 4-Piston Caliper — 355 mm rotor OE / Part No.: L 172-2523 · R 172-2524 Option 2: Brembo GT | M4 4-Piston Caliper — 355 mm rotor Option 3: Brembo GT | S4 4-Piston Caliper — 355 mm rotor |
| CCB brake pads | Matched ceramic-compatible compound for the supplied StopFlex carbon ceramic rotors |
| Rotor hats and floating hardware | Vehicle-specific hardware package |
| Brake lines | Included for complete kit-upgrade orders |
| 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. |
Make It Yours — Color & Logo Customization
Specify custom caliper colors, a custom caliper logo, and custom rotor hat colors on any kit order — the finished package matches your build instead of a standard catalog look.
- Custom caliper color
- Custom caliper logo
- Custom rotor hat color
Why Carbon Ceramic — and Why StopFlex
Lower Unsprung Mass
A carbon-ceramic rotor weighs roughly half of the equivalent iron disc. Less rotating, unsprung mass lets the suspension follow broken pavement more cleanly and makes steering response noticeably sharper.
High-Temperature Stability
The carbon-silicon-carbide friction matrix keeps working at temperatures that push iron rotors into heavy fade, so the tenth hard stop feels like the first — same pedal travel, same bite point.
Rust-Free Rotor Surface
Ceramic discs cannot flash-rust. After rain, a wash, or weeks of parking, the rotor face behind your open-spoke wheels stays clean — no orange ring on a freshly detailed car.
Long Street-Service Life
In normal road use with matched pads and correct bedding, one StopFlex CCB rotor set is engineered to outlast several sets of iron replacement rotors, recovering part of the up-front cost.
Low Visible Dust
Matched with StopFlex pads, the system sheds a fraction of the dust an iron rotor and pad combination throws. Wheels stay clean for weeks of driving instead of days.
Premium Ceramic-Glaze Finish
StopFlex's proprietary coating gives the disc a bright ceramic-glaze surface with subtle texture — the factory carbon-ceramic look, clearly visible through open wheel designs.
Continuous Fiber Construction
StopFlex discs are built with long continuous carbon fiber instead of chopped short fiber. Continuous strands carry load across the whole rotor body, raising strength and thermal durability under heat cycles.
Bespoke Per-Vehicle Engineering
Every order is machined to the confirmed vehicle and trim. Brackets, hat offsets, and pad shapes are built for that exact car — never pulled from a one-size-fits-all catalog.
CCB-Specific Pad Compound
A low-metallic resin pad compound reinforced with steel, copper, and aramid fiber, made for ceramic discs: stable to about 750 °C, roughly 0.44 average friction, strong fade resistance, low rotor wear.
Winter & Cold-Weather Braking
Cold facts first: an untuned ceramic disc bites less than iron on a freezing morning — physics, not a defect. StopFlex tuned both the pad compound and the disc's ceramic coating for cold starts, so winter cold-car braking now feels very close to summer. Leave extra margin on the very coldest first stops; severe-climate daily drivers should build Street Spec.
Caliper Overview
Front Caliper
The front runs a Brembo 6-piston caliper, and you pick the option that suits your build: V6 (Brembo OEM Cadillac CTS-V), GT6 (Brembo GT | M6), or GTS6 (Brembo GT | S6), all sized for the 380 or 405 mm carbon-ceramic rotor. Six opposed pistons give even pad loading and a firm, repeatable pedal on the Giulia's front axle.
Rear Caliper
The rear pairs to a Brembo 4-piston caliper — V4 (OEM Cadillac CTS-V), GT4 (GT | M4), or GTS4 (GT | S4) — over a 355 mm carbon-ceramic rotor to add rear thermal capacity and balance the bigger front setup. On EPB-equipped Giulia trims the parking-brake function is retained.
Choose Your Rotor: Street, Track-Day, or Motorsport
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.
Heat Management Note
Carbon ceramic rotors tolerate extreme surface temperature, but they do not remove every heat-management requirement. During repeated hard stops, heat still soaks 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.
Get Your Fitment Confirmed
Before ordering, tell us the exact vehicle, current rotor sizes, and caliper type. Nothing goes to production until the build is confirmed against your VIN-level configuration.
FAQ
Will these brakes feel weak on a cold winter morning?
On a cold start any carbon-ceramic disc bites less than cold iron — that is basic physics, not a fault. StopFlex tunes both the pad compound and the disc's ceramic coating for cold pickup, so the first stops on a frozen Giulia now feel very close to warm-weather feel. Leave a little extra following distance on the coldest first few stops and the discs come up to temperature quickly.
Does this fit my exact Giulia trim, including the Quadrifoglio?
Each kit is engineered to your confirmed trim, not to the Giulia platform in general. The Quadrifoglio (952) uses different front uprights, hub geometry, and wheel clearance than the base and Ti models, so the brackets, rotor-hat offsets, and caliper mounting are cut to match your specific car. We do not sell a one-size bolt-on claim — send your VIN and trim and we confirm the fitment before building.
What wheels do I need to clear these rotors?
The largest front rotor is 380 mm (405 mm optional), so 19-inch wheels are the minimum. Anything under 19 inches will not clear the disc and caliper. Spoke shape and inner-barrel clearance also matter, so confirm your wheel model with us before ordering, especially on aftermarket wheels.
Will the electronic parking brake still work with the rear kit?
Yes. The Giulia's factory electronic parking brake is retained. The rear Brembo 4-piston caliper option over the 355 mm carbon-ceramic rotor is set up to keep the EPB function working exactly as it did from the factory.
More Contact Information
We’re here to help! Whether you need expert advice on brake setups, have questions about your order, or just want to share feedback, our team is ready to assist you. Reach out via your preferred channel below, or use the inquiry form.
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