2014-2019 Porsche 911 (991) GT3 / RS / Touring Carbon Ceramic Brake Kit
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
2014-2019 Porsche 911 (991) GT3 / RS / Touring Carbon Ceramic Brake Kit — OEM-Size Replacement
The 2014-2019 Porsche 911 991 GT3, GT3 RS, Touring, and 911 R owner usually shops carbon ceramic brakes for one of two reasons: iron rotors are consuming pads and dusting open wheels on track, or factory PCCB rotors are cracked or near service limit. This StopFlex OEM-size replacement kit is built around the listed 380 mm or 410 mm front and 380 mm or 390 mm rear rotor references, so the brake package stays matched to the factory GT caliper and wheel setup. Carbon-ceramic discs reduce rotating and unsprung mass, improve high-temperature fade resistance, and keep the factory pad-wear warning system functional with compatible wear sensors.
- Direct-fit coverage is limited to 2014-2019 991 GT3, GT3 RS, Touring, and 911 R configurations using the listed 380 mm iron-size or 410/390 mm PCCB-size rotor package.
- The kit includes carbon-ceramic rotors, matched pads, hats, and floating hardware, replacing the complete friction and mounting assembly rather than only the disc rings.
- Porsche pad-wear sensors remain compatible with the OEM warning circuit, so the factory pad-wear alert continues to work without dashboard errors.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Porsche 911 (991) GT3 / RS / Touring |
| Model years | 2014-2019 |
| Front rotor reference | GT3/Touring/GT3 RS/911 R: 380mm, 410mm (PCCB) |
| Rear rotor reference | GT3/Touring/GT3 RS/911 R: 380mm, 390mm (PCCB) |
| Page type | OEM-size carbon ceramic replacement |
For OEM replacement orders, StopFlex builds around the factory rotor specification shown for this vehicle. Front floating-caliper setups require manual review before production. If the car uses aftermarket calipers such as Brembo, AP Racing, Alcon, or Wilwood, the order can still be built, but the exact caliper model, pad shape, and rotor dimensions must be confirmed before production.
Carbon ceramic rotor diameter sets the smallest wheel that clears the caliper. Confirm your wheel diameter and spoke clearance with StopFlex before ordering.
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.
Custom Rotor Hat Color
Every StopFlex OEM replacement order can be built with a custom rotor hat color, giving the carbon ceramic rotor package a cleaner match with the wheel, body color, and overall build style.
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 |
|---|---|
| CCB rotors | Full-car set by default |
| CCB brake pads | Matched for StopFlex carbon ceramic rotors |
| Brake pad wear sensors | Included; 100% compatible with the OEM wear-sensor system. |
| 7075 aluminum floating rotor hats | Vehicle-specific fitment |
| Stainless floating hardware | Full-car hardware set |
| Rotor hat color | Custom rotor hat colors are available for every OEM replacement order. |
| Order scope | Default listing is full-car set. Front-only or rear-only orders can be arranged after confirmation. |
FAQ
Will this fit every 2014-2019 Porsche 911 991 GT3 or GT3 RS?
No. Fitment is limited to the 991 GT3, GT3 RS, Touring, and 911 R trims using the rotor sizes listed for this page: 380 mm or 410 mm front and 380 mm or 390 mm rear. Confirm your current rotor diameter, caliper package, and wheel clearance before ordering.
Does this replace Porsche PCCB rotors or upgrade iron brakes?
This is an OEM-size replacement kit for the listed brake setups. It can replace worn factory carbon-ceramic rotors in the 410 mm front / 390 mm rear PCCB configuration, or the listed 380 mm front / 380 mm rear size when that is the selected package for the car.
Will the factory pad-wear warning still work?
Yes. This 991 GT fitment uses brake pad wear sensors that are compatible with the Porsche OEM wear-sensor system, so the factory warning function remains active without creating a dashboard fault.
What should I confirm before buying for a track-used 991 GT3?
Confirm the exact trim, model year, front and rear rotor diameters, current caliper package, and wheel clearance. Track owners should also match pad compound and fluid to use case, because carbon-ceramic rotors control heat differently than iron rotors.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
More Contact Information
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