2006-2014 Lexus IS (XE20 / USE20) Carbon Ceramic Big Brake Kit — Brembo Shelby GT350 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 2006-2014 Lexus IS (XE20 / USE20). This page's exact brake setup:
| Model Years | Front Setup | Rear Setup | Min. Wheel Size |
|---|---|---|---|
| 2006-2014 | Brembo OEM Ford Shelby GT350 Mustang 6-Piston Caliper / 390mm | TTSPORT EP4 4-Piston Forged Caliper integrated with EPB / 380mm | 20" |
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 390 mm rotor sets the minimum wheel size at 20" — 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 | Brembo OEM Ford Shelby GT350 Mustang 6-Piston Caliper OE / Part No.: L FR3Z-2B121-G · R FR3Z-2B120-F |
| Front CCB rotors | 390mm |
| Rear calipers | TTSPORT EP4 4-Piston Forged Caliper integrated with EPB |
| Rear CCB rotors | 380mm |
| 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
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.
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.
Winter & Cold-Weather Braking
A cold, untuned carbon-ceramic disc needs more pedal than iron on the first winter stops — normal material physics. StopFlex engineered the pad formula and disc coating specifically for cold starts, closing that gap: cold-car winter feel is now very close to summer feel. Keep a little extra distance on the coldest mornings; for harsh winters, choose Street Spec.
Caliper Overview
Front Caliper
The front caliper is the Brembo OEM Ford Shelby GT350 Mustang 6-Piston Caliper, a factory-homologated monoblock unit clamping a 390mm carbon-ceramic rotor. Six pistons give even pad loading and a firm, repeatable pedal through repeated hard stops.
Rear Caliper
The rear runs the TTSPORT EP4 4-Piston Forged Caliper integrated with EPB on a 380mm rotor. It uses four 28mm hydraulic service pistons plus one dedicated 27mm EPB actuator piston, so your factory electronic parking brake keeps working while you gain real rear-axle thermal capacity from a two-piece forged-aluminum body weighing about 4.50 kg per caliper.
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
Ceramic discs shrug off surface temperatures that would destroy iron, but the rest of the system still heats up: pads, fluid, seals, calipers, and wheels all absorb soak heat during repeated hard stops. For track days, long descents, and sustained hard driving, run brake cooling and high-temperature fluid.
Get Your Fitment Confirmed
Share your year, model, trim, wheel size, current rotor dimensions, and caliper type — every order is verified against your VIN-level configuration before it goes to production.
FAQ
Will this kit bolt onto my exact IS trim?
Each kit is engineered for your confirmed trim, not the XE20 platform in general. The IS-F uses different front knuckles, hub geometry, and wheel offset than the IS250 and IS350, so we cut trim-specific brackets and set rotor-hat offsets to match the car you actually have. We confirm your trim before anything ships; we do not sell a one-size platform bolt-on.
What wheels do I need to clear the 390mm front rotor?
The 390mm front rotor and Brembo GT350 6-piston caliper require a minimum 20-inch wheel. Wheels under 20 inches will not clear the rotor and caliper, and spoke geometry matters too, so send us your wheel specs during fitment so we can verify inner clearance before you commit.
How do these carbon-ceramic brakes behave in cold winter driving?
Physics first: an untuned carbon-ceramic disc bites less than iron when it is cold, which is normal and not a fault. We have optimized both the low-metallic resin-composite pad compound and the disc's ceramic coating for cold starts, so winter cold-car feel now comes very close to summer feel. On the coldest first stops of the day, leave a little extra following distance until the system warms.
Does this handle repeated hard stops without fading?
That is the point of the upgrade. The 390mm front and 380mm rear carbon-ceramic rotors shed heat far better than the stock steel setup XE20 owners outgrow on track days, and the pad compound runs an average friction coefficient near 0.44 with heat resistance to about 750 degrees C and strong anti-fade behavior. The GT350 6-piston front and EP4 4-piston rear keep clamping consistent stop after stop.
More Contact Information
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