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Porsche // 993 (911) (1994-1998) // 993 (911) RS 1994-97
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9m Floating Rear Brake Disc Upgrade – 350 x 20mm
Sold as a pair
Take the braking performance of your Porsche to the next
level with the Ninemeister 9m Floating Rear Brake Disc Upgrade. Featuring a 350 x 20mm two-piece floating slotted
brake disc assembly, this premium upgrade has been developed to deliver
exceptional braking consistency, superior cooling performance and reduced
unsprung weight for fast road and track-focused driving.
Fits:
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Cayman 2.7L 981 2013-16
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- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
Each assembly combines a lightweight CNC-machined aluminium hat with a precision-engineered high carbon cast iron rotor, creating a floating brake disc capable of expanding independently under extreme braking temperatures. This floating design helps minimise internal stress within the rotor, reducing the risk of distortion, vibration and brake judder while maintaining consistent pedal feel during repeated heavy braking.
Manufactured using CM-250 formulated high carbon alloy cast iron, the rotor delivers exceptional thermal stability, outstanding wear resistance and excellent braking performance under demanding conditions. Combined with 72 internal cooling vanes, heat is dissipated rapidly to minimise brake fade and maximise confidence behind the wheel.
Designed for enthusiasts who demand more from their Porsche, the Ninemeister 9m floating brake disc upgrade provides a significant improvement in braking performance without compromising everyday drivability.
What Are the Benefits of a Two-Piece Floating Brake Disc?
Unlike conventional one-piece brake discs, a two-piece floating assembly separates the braking surface from the mounting hat.
This advanced design offers numerous advantages:
- Allows the cast iron rotor to expand independently under heat.
- Reduces thermal stress within the braking surface.
- Minimises the likelihood of disc warping.
- Helps eliminate brake vibration and judder.
- Improves braking consistency.
- Reduces unsprung and rotating mass.
- Enhances suspension performance.
- Increases service life during demanding driving conditions.
This floating design is widely used in motorsport and high-performance road applications due to its ability to maintain braking performance under extreme temperatures.
Advanced Rotor Technology
The Ninemeister 9m rotor has been developed using premium materials and precision manufacturing processes.
Each rotor features:
- 72
internal cooling vanes for maximum airflow.
- CM-250
formulated high carbon alloy cast iron for exceptional strength and
thermal stability.
- Heat-treated rotor rings to relieve internal stresses.
- Reduced susceptibility to thermal distortion.
- Improved resistance to vibration.
- Precision-machined braking surfaces for consistent pad contact.
- Slotted road pattern to continuously clean the brake pad surface and assist with gas and dust evacuation.
The result is predictable braking performance with outstanding durability during repeated heavy braking.
Lightweight CNC Aluminium Hat Assemblies
Each floating disc incorporates a lightweight aluminium hat manufactured from 6061-T6 aerospace-grade aluminium.
Every hat is:
- CNC machined for exceptional accuracy.
- Hard anodised for corrosion protection.
- Lightweight to reduce rotating mass.
- Manufactured to precise tolerances.
- Engineered for reliable long-term performance.
The reduction in unsprung weight allows the suspension to react more efficiently, improving handling, ride quality and steering response.
Why Upgrade Your Rear Brake Discs?
High-performance driving generates significant braking temperatures that can challenge conventional brake discs.
Upgrading to the Ninemeister 9m floating brake discs offers:
- Improved heat dissipation.
- Reduced brake fade.
- More consistent braking performance.
- Reduced brake judder.
- Greater resistance to thermal cracking.
- Improved pedal feel. Lower unsprung weight.
- Enhanced confidence during spirited road driving and track use.
These advantages become particularly noticeable during repeated heavy braking where consistent performance is essential.
Benefits
- Superior braking consistency.
- Excellent thermal management.
- Increased resistance to brake fade.
- Reduced rotor distortion.
- Reduced brake vibration.
- Improved suspension response through lower unsprung weight.
- Outstanding durability.
- Perfect for fast road and occasional track use.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9M9812771820
The product you are viewing cross references to these numbers
- 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
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- 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