2018-2019 Porsche 911 (991) GT2 RS Carbon Ceramic Brake Kit
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
2018-2019 Porsche 911 (991) GT2 RS Carbon Ceramic Brake Kit — OEM-Size Replacement
The 2018-2019 991 GT2 RS owner is usually replacing expensive PCCB rotors that have track heat checking, impact damage, or service-limit wear, not shopping for a generic brake dress-up kit. This StopFlex OEM-size replacement keeps the GT2 RS brake package at 410 mm front and 390 mm rear with carbon-ceramic rotors, matched pads, hats, and floating hardware, so the factory caliper geometry, heat capacity, low dust output, and unsprung-weight advantage stay aligned with the original Porsche setup.
- Built for the 2018-2019 Porsche 911 (991) GT2 RS with the PCCB-size 410 mm front and 390 mm rear rotor package only.
- Carbon-ceramic friction rings help preserve the GT2 RS braking advantages owners expect from PCCB: high thermal stability, low brake dust on open wheels, and lower rotating mass than an iron conversion.
- Included pads support the factory Porsche pad-wear sensor system, so the OEM wear warning remains functional without sensor-related dashboard errors.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Porsche 911 (991) GT2 RS |
| Model years | 2018-2019 |
| Front rotor reference | GT2 RS: 410mm (PCCB) |
| Rear rotor reference | GT2 RS: 390mm (PCCB) |
| Page type | OEM-size carbon ceramic replacement |
| Minimum wheel size | 21" (for the 410 mm rotor) |
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.
This setup uses a 410 mm rotor, so the minimum wheel size is 21". Wheels under 21" will not clear the caliper and rotor, and spoke profile and offset affect clearance too — confirm your exact wheels 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 kit fit every 2018-2019 991 GT2 RS?
It is intended only for 2018-2019 Porsche 911 (991) GT2 RS cars using the listed PCCB-size 410 mm front and 390 mm rear rotors. Before ordering, confirm your current rotor diameters and that the car still has the factory GT2 RS PCCB caliper configuration.
Will my factory pad-wear warning still work?
Yes. This Porsche application uses brake pad wear sensors that are compatible with the OEM wear-sensor system, so the factory pad-wear warning function remains active without dashboard errors from the sensor circuit.
Why choose carbon-ceramic instead of a steel conversion on a GT2 RS?
A steel conversion can lower consumable cost for heavy track use, but it adds rotating and unsprung mass and usually produces more brake dust. This StopFlex kit keeps the GT2 RS in the original 410/390 mm carbon-ceramic architecture for low dust, corrosion-free rotor faces, heat stability, and factory-style steering response.
What should I verify before installation?
Confirm the car is a 2018-2019 991 GT2 RS, verify 410 mm front and 390 mm rear rotor sizing, inspect the calipers and sensor wiring for damage, and check that your wheels clear the factory PCCB package. Any non-OEM wheel or brake modification should be measured before the kit is ordered.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
More Contact Information
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