
2005-2012 Porsche Boxster (987) CCB Big Brake Kit | Brembo OEM Porsche 911 GT3 6-Piston
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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2005-2012 Porsche Boxster (987) / S / Spyder CCB Big Brake Kit — Genuine Brembo OEM Porsche 911 GT3 6-Piston Caliper Front + Genuine Brembo OEM Porsche 911 GT3 4-Piston Caliper Rear Setup
The 2005-2012 Porsche Boxster 987 is light and balanced, but repeated high-speed stops can push the factory iron brakes into heat, dust, and consumable-cost territory. This StopFlex kit pairs 405mm front carbon-ceramic rotors with Genuine Brembo OEM Porsche 911 GT3 6-Piston Calipers, then matches the rear with 390mm carbon-ceramic rotors and GT3 4-piston calipers for heat capacity, lower rotating mass, and reduced brake dust. Brackets, rotor-hat offsets, caliper mounting, brake lines, and hardware are engineered around the buyer’s confirmed Boxster, Boxster S, or Spyder trim rather than assumed from the 987 chassis name.
- 405mm front rotors require 21-inch or larger wheels on the 987 Boxster; inner barrel and spoke clearance are checked before production.
- Front braking is handled by a Genuine Brembo OEM Porsche 911 GT3 6-Piston Caliper, matched to a StopFlex 405mm carbon-ceramic rotor for high-heat road and track use.
- The kit retains the Porsche pad-wear warning function with compatible brake pad wear sensors, so the factory wear-sensor system continues to operate without dashboard errors.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Porsche Boxster (987) / S / Spyder |
| Model years | 2005-2012 |
| Front setup | Genuine Brembo OEM Porsche 911 GT3 6-Piston Caliper / 405mm |
| Rear setup | Genuine Brembo OEM Porsche 911 GT3 4-Piston Caliper / 390mm |
| Page type | Complete CCB kit upgrade |
| Minimum wheel size | 21" (for the 405 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 405 mm front 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.
| 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 the Genuine Brembo OEM Porsche 911 GT3 6-Piston Caliper, giving the 987 Boxster a six-piston fixed-caliper layout with more even pad loading and a firmer response under repeated braking. Its OEM Porsche GT3 provenance matters because it is a proven Brembo performance caliper architecture rather than an anonymous aftermarket casting. StopFlex builds the brackets, hose routing, and 405mm rotor-hat offset around the confirmed Boxster, Boxster S, or Spyder trim.
Rear Caliper (Balance)
The rear axle uses a Genuine Brembo OEM Porsche 911 GT3 4-Piston Caliper with a 390mm carbon-ceramic rotor to keep rear brake contribution proportional to the upgraded front axle. The 987 Boxster uses a mechanical parking-brake arrangement, not an electronic parking brake, so EPB integration is not required for this chassis.
Front & rear, engineered together: This kit is engineered as a front-and-rear system so the 405mm front and 390mm rear carbon-ceramic rotors work with matched GT3-derived calipers instead of creating a front-heavy conversion. Matching caliper mounting, rotor-hat offsets, pad selection, and line routing helps preserve braking stability and pedal consistency on a mid-engine 987 chassis.
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 | Genuine Brembo OEM Porsche 911 GT3 6-Piston Caliper |
| Front CCB rotors | 405mm |
| Rear calipers | Genuine Brembo OEM Porsche 911 GT3 4-Piston Caliper |
| Rear CCB rotors | 390mm |
| CCB brake pads | Matched for the supplied StopFlex carbon ceramic rotors |
| Brake pad wear sensors | Included; 100% compatible with the OEM wear-sensor system. |
| 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. |
FAQ
Will this kit fit my exact 987 Boxster, Boxster S, or Spyder?
StopFlex does not assume one bracket and rotor-hat offset fits every 987. Your kit is built after confirming model year, trim, hub/upright configuration, wheel size, wheel offset, and spoke clearance, then the caliper brackets and rotor hats are matched to that specific car.
What wheels are required for the 405mm front rotor?
The 405mm front rotor requires 21-inch or larger wheels. Wheels under 21 inches will not clear the rotor, and even 21-inch wheels still need inner-barrel and spoke-clearance verification against the Genuine Brembo OEM Porsche 911 GT3 6-Piston Caliper.
Will the factory pad-wear warning still work?
Yes. This Porsche-specific kit uses brake pad wear sensors compatible with the OEM wear-sensor system, so the factory pad-wear warning remains functional without dashboard errors.
Does this 987 kit retain the parking brake?
The 2005-2012 Boxster 987 does not use a factory electronic parking brake; it uses a mechanical parking-brake system. StopFlex accounts for that rear-brake architecture when configuring the 390mm rear carbon-ceramic rotor, rear caliper package, hats, hardware, and lines.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
More Contact Information
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