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- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12


Fits:
This is a 340mm Upgrade with spacers & hardware
Porsche 996 C2 / C4
Porsche 997 C2 / C4
Porsche 987 Cayman S
Porsche 987 Cayman R
Porsche 986/987 Boxster S
Kit Contains:
Brake Disc 340MM complete with centre bell.
Brake Disc Type: 2-Piece Drilled & 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 Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12


Fits:
This is a 325mm Upgrade with spacers & hardware
Porsche 987 Cayman S/R w/o PCCB
Porsche 987 Boxster S w/o PCCB
Kit Contains:
Brake Disc 325MM 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 Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12


Fits:
Replacement disc only 340mm Upgrade with spacers & hardware
Porsche 996 C2 / C4
Porsche 997 C2 / C4
Porsche 987 Cayman S
Porsche 987 Cayman R
Porsche 986/987 Boxster S
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12


Fits:
Replacement disc only 325mm Upgrade with spacers & hardwarehardware
Porsche 996 C2 / C4
Porsche 997 C2 / C4
Porsche 987 Cayman S
Porsche 987 Cayman R
Porsche 986/987 Boxster S
Giro Slotted Brake Discs - High-Performance Braking Control & Heat Management
Giro slotted brake discs are engineered for enhanced braking performance, improved heat dissipation, and consistent pedal feel in both performance road and track-focused applications. Featuring precision-machined slots, these discs help clear brake gases, dust, and debris from the pad surface, maintaining optimal contact between pad and disc under demanding driving conditions.
Available from Design911, Giro slotted brake discs offer a balanced solution for drivers seeking improved braking response, reduced fade, and enhanced durability without compromising everyday drivability. Their advanced design supports confident braking during spirited road use and repeated high-load braking scenarios.
What Do Giro Slotted Brake Discs Do?
Giro slotted brake discs work alongside high-quality brake pads to deliver controlled and repeatable stopping power.
Core Functions:
- Improve heat dissipation during heavy braking.
- Remove brake gases and debris from the pad surface.
- Maintain consistent pad contact and braking response.
- Enhance wet-weather braking performance.
- Reduce brake fade under repeated high-load use.
The slotted design ensures reliable braking performance across a wide range of driving conditions.
Why Do Brake Discs Wear or Fail?
Brake discs are subject to extreme mechanical and thermal stress over time.
Common Causes of Wear or Failure Include:
- Thermal
cycling leading to cracking or warping.
- Surface
wear from aggressive braking.
- Heat
build-up reducing braking efficiency.
- Uneven
pad deposits causing vibration or judder.
- Extended service intervals beyond recommended limits.
As discs wear or degrade, braking consistency, pedal feel, and safety are reduced—making replacement essential.
Why Replace with Giro Slotted Brake Discs?
Upgrading to Giro slotted brake discs restores braking performance while enhancing heat management and durability.
Key Benefits:
- Improved braking consistency and pedal feel.
- Enhanced resistance to brake fade.
- Better debris and gas evacuation.
- Increased confidence during spirited and performance driving.
- Suitable for performance road cars and track-day builds.
Replacing worn discs with Giro slotted discs ensures braking performance remains predictable and reliable under demanding conditions.
Highlights
- Precision-machined slotted brake disc design.
- Enhanced heat dissipation and braking stability.
- Improved pad bite and consistent response.
- Suitable for performance road and track use.
- High-quality construction for long service life.