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- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
(Left OR Right).
380mm diameter and thickness is 30mm
The radial depth is 47mm
Brake disc only, does not include brake bell
This Product Fits:
Porsche 991 GT3 Cup (sprint). Not for use in official Porsche Carrera Cup championships.
Porsche Cayman GT4 Clubsport (FIA GT4 homologated)
Ever since the disc brake was invented vibration and pulsation caused by thermal expansion has been a major issue giving rise to warped discs - until now?
PFC has released new V3 disc and hat technology. The advanced design features a patented attachment design that uses a retention ring that holds the hat and disc together.
The ring means no need for torque wrenches, and no hassle. The ability to change a disc quickly and efficiently saves time and effort. As well as being convenient, the new V3 technology is much lighter than previous designs, making it easier to put on and pull off, and making the vehicle lighter.
This V3 disc retention method is based on the use of a two-turn retaining ring, which is held in a groove in the hat that overlaps the disc flanges – effectively locking the disc to the hat.
● Exceptional manufacturing standards - Run out less than 0.0254mm, Thickness variation less than 0.00762mm. Surface finishes less than .7 microns.When used in conjunction with Z rated fast road/track day pads, component life and on track performance markedly improved over competitors pads.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
380.30.0047
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
Set of 2 brackets
Porsche 964
Porsche 944 S2 / Turbo ’87
Porsche 968
6082-T6 Aluminum, Helicoil inserts
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
SET OF 2
Fits:
Porsche 964 1989-94
Porsche 944 S2
Porsche 968 1992-95
For 964/944's with medium S4 calipers: Use 304x32mm rotors Porsche part number 92835104360 / 92835104460
For 964/944's with 993TT (Big Red Calipers): Use 322x32mm rotors Porsche part number 96535104500 / 96535104600
Note: Pictures may not show actual product. The adaptor is intended for off road use only.
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
SET OF 2
Fits:
Porsche 964 turbo
Porsche 964 RS
Kit Contains:
Brake Disc complete with centre bell.
Brake Disc Type: 2-Piece Slotted
The Girodisc system is a direct replacement for the OE disc. No modifications are necessary, and it allows the use of unmodified factory pads. The disc will bolt directly to the car and work with factory calipers.
The central hat section of our rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from our own proprietary cast iron, poured in the USA and machined from start to finish in-house at Girodisc. The rotor utilizes a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.
The rotor and hat have a floating mount system, which utilizes 12 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The pins are secured by class 12.9 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads.
Once the Girodisc system is in place, simply replace the cast iron rotor when needed.
This product is a special order item, allow 5 - 7 working days for delivery.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
A1-046
The product you are viewing cross references to these numbers
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- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
9m Carbon Ceramic Big Brake Kit – 350mm Front & Rear
Upgrade the braking performance of your Porsche 964 with the 9m Carbon Ceramic Big Brake Kit, designed to replace the original steel brake discs with advanced carbon ceramic technology.
This comprehensive upgrade features 350mm two-piece floating carbon ceramic discs front and rear, combined with uprated 9m/Brembo 6-piston front calipers and 4-piston rear calipers.
Engineered to deliver exceptional braking consistency, reduced weight and improved resistance to brake fade, the kit offers a substantial performance improvement over conventional cast iron braking systems.
The carbon ceramic discs are manufactured using long-strand carbon fibre reinforcement combined with silicon carbide, providing excellent strength, durability and thermal stability.
Each floating disc features a CNC-machined 6061-T6 billet aluminium centre bell, hard anodised for strength, rigidity and corrosion resistance.
The kit is supplied with adaptor brackets, braided brake lines and the required installation hardware.
What Does the 9m Carbon Ceramic Brake Kit Do?
The 9m braking system replaces the original Porsche 964 steel brake discs and calipers with a lightweight, high-performance carbon ceramic arrangement.
The larger 350mm discs and uprated multi-piston calipers provide increased braking capability, while the carbon ceramic construction offers excellent resistance to heat and brake fade.
Reducing brake disc weight also lowers unsprung and rotational mass, helping improve suspension response, handling and steering feel.
Why Upgrade to Carbon Ceramic Brakes?
Compared with conventional cast iron brake discs, carbon
ceramic technology offers several performance advantages:
- Weight reduction of approximately 16kg compared with the conventional cast iron disc arrangement
- Reduced unsprung mass for improved suspension response
- Excellent resistance to brake fade under demanding conditions
- Consistent braking performance at high operating temperatures
- Superior thermal stability during repeated heavy braking
- Significantly reduced brake dust with compatible brake pads
- Improved resistance to corrosion
- Exceptional durability and long potential service life
Under suitable operating conditions, carbon ceramic discs can achieve very high mileages, although actual service life depends on driving conditions, maintenance and usage.
Two-Piece Floating Carbon Ceramic Discs
The 9m kit uses 350mm floating carbon ceramic discs on both axles.
The friction rings are constructed from long-strand carbon fibre reinforced with silicon carbide, providing a lightweight structure capable of withstanding extreme braking temperatures.
The floating design allows controlled thermal expansion, helping reduce stress during repeated heating and cooling cycles.
Each disc features a precision CNC-machined 6061-T6 billet aluminium centre bell with a hard-anodised finish.
Uprated 9m/Brembo Brake Calipers
The kit includes uprated multi-piston calipers designed to
work with the larger carbon ceramic discs.
- Front: 6-piston calipers
- Rear: 4- calipers
Complete Brake Upgrade Kit
The 9m Carbon Ceramic Big Brake Kit includes:
- 350mm front carbon ceramic floating brake discs
- 350mm rear carbon ceramic floating brake discs
- CNC-machined 6061-T6 aluminium centre bells
- 9m/Brembo 6-piston front brake calipers
- 9m/Brembo 4-piston rear brake calipers
- Brake caliper adaptor brackets
- Braided brake lines
- Required installation hardware
Confirm the supplied brake pad specification and wheel clearance before installation.
Designed as a performance brake conversion for the Porsche 964 platform. Confirm compatibility with the individual model, existing braking system, wheel dimensions and ABS configuration before ordering.
Porsche 964 Carbon Ceramic Big Brake Kits & Performance Brake Upgrades
The 9m Carbon Ceramic Big Brake Kit provides a comprehensive braking upgrade for Porsche 964 owners seeking reduced weight, improved thermal stability and consistent braking performance.
Featuring 350mm carbon ceramic floating discs on both axles, uprated 9m/Brembo calipers and lightweight billet aluminium centre bells, the system offers significant advantages over traditional cast iron brake arrangements.
Its advanced carbon ceramic construction helps reduce unsprung mass, improve suspension response and maintain braking performance during repeated high-temperature use.
Supplied with adaptor brackets, braided brake lines and installation hardware, the kit is designed as a complete performance brake conversion for the Porsche 964.
Design911 supplies 9m Porsche performance brake kits, carbon ceramic brake discs, uprated calipers and associated braking components for classic and modern Porsche models.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9M964CCKIT
The product you are viewing cross references to these numbers