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SPORTS Brake Disc

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DISPLAYING 1 to 13 (of 13 products)
A1-272
Product Information
Product Information
Brake Disc / Rotor Slotted 2-pc FRONT 992 GT3 excl. PCCB SET OF 2

girodisc

front
Fits:
Porsche 992 GT3 excl. PCCB

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 on the 992 GT3 with OEM iron rotors. 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.
A1-276
Product Information
Product Information
Brake Disc / Rotor Slotted 2-pc FRONT 992 GT3 with PCCB SET OF 2

girodisc

front
Fits:
Porsche 992 GT3 with PCCB

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 on the 992 GT3 with OEM iron rotors. 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.
A1-306
Product Information
Product Information
Brake Disc / Rotor Slotted 2-pc FRONT, 
36mm thick


front
Fits:
Porsche 992 GT3 / GT3 RS -  excl. PCCB

Sold/priced per pair.
 
Note:  Stock photography may not depict actual product.

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.

A1-306
A1-306
9GT615301B
9GT615301G
9GT615301L
9GT615302B
9GT615302G
9GT615302L

The product you are viewing cross references to these numbers
A2-154S
Product Information
Product Information
Brake Disc / Rotor Slotted 2-pc REAR

rear
Fits:
Rear iron rotor: 390mm Direct Replacement
Porsche 991 GT3 with Ceramic brake (PCCB)
Porsche 991 GT2RS with Ceramic brake (PCCB)
Porsche 992 GT3 with Ceramic brake (PCCB)
Porsche 982 GT4RS with Ceramic brake (PCCB)

Kit Contains:
Brake Disc 390MM 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.
A2-272S
Product Information
Product Information
Brake Disc / Rotor Slotted 2-pc REAR 992 GT3 excl. PCCB

rear
Fits:
Porsche 992 GT3 excl. PCCB
Porsche 718 GT4 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 on the 992 GT3 with OEM iron rotors. 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.

A2-272S
98135240781
9813524881
9GT615601B
9GT615602B

The product you are viewing cross references to these numbers
9GT61530
Product Information
Product Information

Brake disc rotor, Front. FORMULA Z. Porsche 992 GT3 (OE Part No 9GT615301L / 9GT615302L)

Zimmermann FORMULA Z brake disc.

Vented, drilled dimples, two-piece floating brake disc, Coated
Outer diameter: 408 mm
Brake Disc Thickness: 36 mm

front
Porsche 992 GT3 - FRONT
Steel Discs

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.

9GT61530
460.4551.75
460.4552.75
9GT615301
9GT615302
9GT615301G
9GT615301L
9GT615301B
9GT615302G
9GT615302L
460.4559.75
460.4560.75

The product you are viewing cross references to these numbers
9GT61560
Product Information
Product Information

Brake disc rotor, Rear. FORMULA Z. 

Zimmermann FORMULA Z brake disc.

Vented, Perforated, Two-piece floating brake disc, Coated
Outer diameter: 380mm
Brake Disc Thickness: 30mm
Height: 74mm
Rim Hole Number: 5-Hole
Bolt Hole Circle Ø: 130mm
Centering Diameter: 98mm

rear
Porsche 992 GT3 - Rear
Porsche 992 GT3 RS - Rear
Porsche 718 Cayman GT4 RS - Rear
Steel Discs

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.

9GT61560
9GT615601B
9GT615602B
460.4546.75
460.4547.75
9GT615601E
9GT615602E

The product you are viewing cross references to these numbers
9F1401111
Product Information
Product Information
Drive Pin brake disc. 
Sold each - 5 required per disc

demonspeed

Fits:
Porsche 991 GT3 Cup with Centrelock wheels
Porsche 992 Cup with Centrelock wheels

Description

Centerlock Wheel Drive Pin

These pins can wear over time and become damaged when changing wheels allowing more wheel movement than desired.

Similar to Porsche part number 991.341.705.8A and 9F1401111  



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9F1401111
9913417058A
9F1401111

The product you are viewing cross references to these numbers
380.30.0065
Product Information
Product Information

Replacement Street Rear Brake Disc, Slotted Direct Drive V3
(Left OR Right).

pfc

380mm diameter and thickness is 30mm
The radial depth is 47mm
Brake disc only, does not include brake bell

This Product Fits:
rear

Porsche 991 GT3 2012>>
Porsche 992 GT3
Porsche Cayman 981C GT4 2013>>
Porsche Cayman 718 GT4 

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.

380.30.0065
38007563
38007564
380.075.63
380.075.64
99135240780
99135240880

The product you are viewing cross references to these numbers
410.057.6
Product Information
Product Information
Two-piece floating slotted Direct Drive V3 front iron disc PCCB conversion (including road centre-lock wheels).

Dimensions : 410 × 62 × 34 mm
Weight: 10.9 kg

This Product Fits:
front
Porsche 992 2021>> GT3 iron replacement
Porsche 992 2021>> GT3 iron replacement for PCCB

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.

410.057.6
410.057.63
410.057.64
41005763
41005764

The product you are viewing cross references to these numbers
380.075.
Product Information
Product Information
Hat and Floating disc assembly kit, Direct Drive V3, Slotted Road discs (Left OR Right).
Two-piece floating slotted V3 rear iron disc upgrade
(including road centre-lock wheels).

pfc

These assemblies will replace the steel version with 380mm front and rear disc. From our information, the Porsche 981GT4 and 991GT3 with PCCB are 410mm front /390mm rear. PFC are working on replacement disc for PCCB cars.

pfc

Disc size : 380 mm x 30mm
rear
Porsche 991 GT3 2012>>
Porsche 992 GT3
Porsche Cayman 981C GT4 2013>>

Porsche Cayman 718 GT4 
Not suitable as PCCB conversion 991G

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.

D2-154S
Product Information
Product Information
Rear replacement brake disc (390mm) - slotted - for cars with PCCB and existing GiroDisc hats.

Includes replacement hardware; the only parts you will reuse are your existing GiroDisc hats.

girodisc

rear
Porsche 981 Cayman GT4 / RS 2016 - w/ PCCB.
--
Porsche 718 (982) Cayman GT4 / RS 2019>> - w/ PCCB.
Porsche 718 (982) Boxster Spyder / RS 2019>> - w/ PCCB.
--
Porsche 991.2 Carrera / S / 4 / 4S / GTS / T 2017-19 - w/ PCCB.
Porsche 991 Turbo / Turbo S / GT2 RS 2014-20 - w/ PCCB.
Porsche 991 GT3 / GT3 RS 2014-21 - w/ PCCB.
--
Porsche 992.1 Carrera S / 4S / GTS 2019-24 - w/ PCCB.
Porsche 992 GT3 / GT3 RS 2021>> - w/ PCCB.

NOTE: This listing is for replacement discs specifically designed for vehicles already equipped with GiroDisc's two-piece rotor system. Please note that this product cannot be used as a standalone upgrade.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

D2-154S
A2-154SL
A2-154SR
A2-156SL
A2-156SR

The product you are viewing cross references to these numbers
D1-154S
Product Information
Product Information
Front replacement brake disc (410mm) - slotted - for cars with PCCB and existing GiroDisc hats.

Includes replacement hardware; the only parts you will reuse are your existing GiroDisc hats.

girodisc

front
Porsche 981 Cayman GT4 / RS 2016 - w/ PCCB.
--
Porsche 718 (982) Cayman GT4 / RS 2019>> - w/ PCCB.
Porsche 718 (982) Boxster Spyder / RS 2019>> - w/ PCCB.
--
Porsche 991.2 Carrera / S / 4 / 4S / GTS / T 2017-19 - w/ PCCB.
Porsche 991 Turbo / Turbo S / GT2 RS 2014-20 - w/ PCCB.
Porsche 991 GT3 / GT3 RS 2014-21 - w/ PCCB.
--
Porsche 992.1 Carrera S / 4S / GTS 2019-24 - w/ PCCB.
Porsche 992 GT3 / GT3 RS 2021>> - w/ PCCB.

NOTE: This listing is for replacement discs specifically designed for vehicles already equipped with GiroDisc's two-piece rotor system. Please note that this product cannot be used as a standalone upgrade.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

D1-154S
A1-154SL
A1-154SR
A1-156SL
A1-156SR

The product you are viewing cross references to these numbers
DISPLAYING 1 to 13 (of 13 products)
About SPORTS Brake Disc

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.

Porsche Brake Disc Upgrades: Venting, Drilling, and Grooving Explained

Today we’re talking brake discs: the unsung heroes of your Porsche’s stopping power. What do they do? How can you tell when they need replacing? And what are the upgrade options for enhanced performance? It’s all here. We’ll explore the evolution of brake disc designs, from solid to vented, drilled, and grooved, explaining how each type improves performance. Plus, we’ll break down the materials: durable cast iron, high-carbon steel, and Porsche’s high-performance options like carbon ceramic and surface-coated discs. Whether you’re looking for better braking on the track or a cost-effective daily driving solution, we’ve got you covered.
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