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SPORTS Brake Disc
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97


Fits:
Porsche 993 Turbo
Porsche 993 C4S
Porsche 993 RS
Kit Contains:
Brake Disc complete with centre bell.
Brake Disc Type: 2-Piece Slotted
The Girodisc brake rotor is a direct replacement for the OE discs, and provides significant performance benefits. The rotors are compatible with any of the current pads typically used with these cars.
Additional information:
Braking Performance: The rotor is a two-piece design developed in racing to produce a lightweight rotor that can compensate for the different expansion rates between the hat and rotor and eliminate the possibility of rotor warping.
The rotor and hat have a floating mount system, which utilizes 10 high strength alloy steel drive pins, which allows for axial and radial float.
More heat sink without a weight penalty: The Girodisc disc set weights in a little lighter than the OE system but with an important advantage. The rotors have grown in diameter. This means that weight has been transferred from the center hat were it does nothing to the outer diameter where it is actively absorbing and dispersing heat.
High Quality Materials: The Girodisc system uses only the highest quality materials and components. The rotors are high carbon content iron for long wear and stable thermal performance. The top hat section is machined from billet aluminum with an attractive anodized finish.
This product is a special order item, allow 5 - 7 working days for delivery.
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
SET OF 2

Fits:
Porsche 993 turbo
Porsche 993 RS
Porsche 993 C4S
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.
A2-103
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
Vented, Perforated, Two-piece floating brake disc, Coated
Outer diameter: 322 mm
Brake Disc Thickness: 32 mm
Bolt Hole Circle Ø: 130 mm
Centering Diameter: 103 mm

Porsche 911 (993) Turbo / Turbo Look 1994-98 - FRONT
The Zimmermann Formula Z brake disc was designed with the aim of teaming simple installation with optimum braking effect under high mechanical and thermal load.
The compound brake disc developed by Zimmermann accommodates the increased demands incurred by engine tuning and optimised chassis structures.
Your advantages:
• Excellent deceleration action and no distortion of friction ring at high temperatures
• Substantial weight saving and therefore less unsprung mass
• Floating mounting enables radial expansion of the brake disc under relatively heavy loads, thus preventing shielding and increasing resistance to heat cracks
• „Hot spots" prevented by optimised design of ventilation channels
• 1:1 exchange of original disc possible
• Not subject to registration: general ABE certification supplied with disc
• No conversion required for brake tuning
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99335104
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Ninemeister 9m Carbon Ceramic Big Brake Kit
Transform the braking performance of your Porsche 993 with
the Ninemeister 9m Carbon Ceramic Big Brake Kit, an advanced braking
upgrade engineered for drivers demanding exceptional stopping power, reduced
unsprung weight and outstanding thermal performance. Designed as a direct
replacement for the original steel brake discs, this comprehensive kit combines
9m carbon ceramic floating brake discs, uprated 9m/Brembo aluminium
calipers, bespoke mounting hardware and braided brake hoses to deliver
confidence-inspiring braking on both road and track.
Fits:
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
-
Porsche 993 (911) TURBO S 1994-97
Please state your model when ordering
Featuring 350mm two-piece floating carbon ceramic discs front and rear, together with 6-piston front and 4-piston rear Brembo calipers, this package offers a significant improvement in braking consistency, pedal feel and fade resistance while dramatically reducing unsprung mass.
The calipers are available in Black, Silver or Red to complement your Porsche's styling, allowing you to personalise the appearance without compromising performance.
Kit Contents
The complete conversion kit includes:
- 2 x 350mm front two-piece floating carbon ceramic brake discs
- 2 x 350mm rear two-piece floating carbon ceramic brake discs
- 9m/Brembo 6-piston front performance brake calipers and front brake pads
- 9m/Brembo 4-piston rear performance brake calipers and rear brake pads
- CNC-machined billet aluminium adaptor brackets
- Braided stainless steel brake hoses
- Mounting hardware and fittings Comprehensive installation components
Advanced Carbon Ceramic Technology
At the heart of this braking system are the latest generation 9m carbon ceramic discs, manufactured using long-strand carbon fibre reinforced with silicon carbide. This sophisticated construction delivers extraordinary strength, exceptional wear resistance and industry-leading thermal stability.
Unlike conventional cast iron brake discs, carbon ceramic rotors are capable of maintaining outstanding braking performance even under repeated high-speed stops, making them ideal for spirited road driving, track days and endurance use.
Precision Floating Disc Design
Each rotor features a lightweight two-piece floating design, incorporating centre bells CNC machined from 6061-T6 billet aluminium.
The billet bells are:
- Precision CNC machined.
- Hard anodised for corrosion resistance.
- Exceptionally strong and rigid.
- Lightweight to reduce rotational mass.
- Designed to accommodate thermal expansion during extreme braking.
This floating construction improves braking consistency while reducing stress throughout the braking system.
Why Upgrade to Carbon Ceramic Brakes?
Carbon ceramic braking technology offers significant advantages over traditional cast iron brake systems.
Benefits include:
- Approximately
16kg reduction in unsprung weight compared with cast iron discs.
- Sharper steering response.
- Improved suspension performance.
- Faster vehicle direction changes.
- Increased acceleration due to reduced rotating mass.
- Enhanced ride quality. Improved overall vehicle dynamics.
Reducing unsprung weight allows the suspension to react more effectively to road surfaces, improving grip, handling and driver confidence.
Exceptional Heat Resistance
During repeated heavy braking, conventional steel discs gradually lose efficiency as temperatures increase.
The Ninemeister Carbon Ceramic system is engineered to
withstand:
- High-speed road driving.
- Mountain roads. Fast road touring.
- Repeated track sessions.
- Extreme braking temperatures.
- Sustained high-performance driving.
The carbon ceramic construction delivers outstanding thermal stability, allowing the braking system to provide consistent stopping power without fade, even under the harshest conditions.
Outstanding Durability
One of the greatest advantages of carbon ceramic technology is longevity.
When properly maintained, the discs offer:
- Exceptional wear resistance.
- Outstanding corrosion resistance.
- Potential service life measured in hundreds of thousands of miles under normal road use.
- Reduced maintenance requirements.
- Long-term ownership value.
This makes carbon ceramic brakes an investment that continues to deliver performance throughout the life of the vehicle.
Benefits
Installing the Ninemeister 9m Carbon Ceramic Big Brake Kit
provides:
- Dramatically improved braking performance.
- Superior pedal feel.
- Outstanding resistance to brake fade.
- Faster heat dissipation.
- Significant reduction in unsprung mass.
- Sharper handling characteristics.
- Improved suspension response.
- Reduced rotational inertia.
- Cleaner wheels.
- Exceptional durability.
- Reduced long-term maintenance.
- Stunning motorsport-inspired appearance.
Installation Recommendations
Professional installation is strongly recommended.
When fitting this performance braking system, it is recommended to inspecting or replace:
- Brake fluid with high-performance specification fluid.
- Wheel bearings.
- Suspension bushes.
- Ball joints.
- Track control arms.
- Brake master cylinder.
- Brake servo.
- Wheel alignment.
- Tyres suitable for increased braking performance.
Correct bedding-in procedures should always be followed to maximise braking efficiency and long-term disc life.
Why Choose Ninemeister?
Ninemeister has earned a worldwide reputation for engineering some of the most advanced Porsche performance components available. Every product is developed through extensive road and motorsport experience, combining innovative design with premium materials and uncompromising manufacturing standards.
The 9m Carbon Ceramic Big Brake Kit represents the ultimate braking upgrade for the Porsche 993, delivering supercar-level stopping performance while preserving excellent drivability, reliability and everyday usability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9M993CCKIT
The product you are viewing cross references to these numbers
Experience race-inspired stopping power with Porsche sports brake discs from Design911. Designed for performance driving, these upgraded brake rotors provide greater heat dissipation, improved bite, and enhanced fade resistance, ensuring confidence under even the most demanding conditions.
What They Are & What They Do
Sports brake discs (or rotors) are precision-engineered
components that work with brake pads to generate friction and stop the car
effectively. Unlike standard discs, sports variants are often drilled, grooved,
or slotted, helping to vent heat and gases, improve braking response, and
maintain consistent performance during high-speed or repeated stops.
Why They Fail
Over time, brake discs wear down from heat cycles, friction,
and corrosion. Common signs of failure include scoring, warping, cracking, or
vibration during braking. Track use or aggressive driving can accelerate wear,
while low-quality discs may develop hotspots and fade under stress.
Why They Should Be Replaced
Replacing worn or damaged brake discs restores optimal
braking efficiency, pedal feel, and vehicle control. New sports discs not only
improve performance and safety but also extend pad life and reduce fade,
ensuring Porsche’s legendary stopping precision. Design911 offers genuine
Porsche discs for factory performance and aftermarket upgrades for enhanced
durability and responsiveness.
Whether you’re restoring a classic 911 or tuning a Cayman or
Taycan for track use, our range of sports discs combines precision,
reliability, and performance to keep your Porsche braking like new.
Aftermarket Performance Brake Discs
High-quality aftermarket discs featuring slotted or drilled
designs for superior airflow, reduced fade, and consistent friction
performance.
Front Sports Brake Discs
Heavy-duty front rotors built to handle intense braking
loads, offering maximum stopping power and stability under pressure.
Rear Sports Brake Discs
Rear discs designed for balanced braking and improved heat
management, ensuring control and composure under repeated deceleration.
Drilled & Grooved Brake Rotors
Advanced rotors engineered to dissipate heat, clean brake
pads, and deliver responsive braking for track and fast-road applications.
Motorsport & Track Brake Discs
Race-grade rotors made from high-carbon or composite
materials, offering unmatched durability and thermal control for competition
use.