GiroDisc
When GiroDisc was founded in 2003, we made it our mission to design and manufacture 2-piece brake rotors that would perform flawlessly at the limits. Our fully-floating design uses tension hardware to ensure that our rotors are silent on the street, but ready to go on the track.
By specializing in this area, we can dedicate our efforts to push our engineering and manufacturing to the highest levels in the industry. Porsche customers around the world have found success maximizing the capabilities of their existing brake systems by installing GiroDisc rotors. This often negates the need for a pricier, more complex upgrade like a big brake kit.

Used with Girodiscs
- We are unable to provide fitting details for this product at this time. Please contact us for further information.

One kit per axle

Fits: - Front
Porsche 991.1 Carrera 2 / Carrera 4 - 2012 to 2016 with PCCB
Porsche 997 GT3 Cup
Porsche 997.1 GT3 / GT2 - 2007 to 2008 WITHOUT PCCB
Porsche 997.2 GT3 / GT2 - 2010 to 2012 WITHOUT PCCB
Porsche 997 GT3 / GT2 - 2007 to 2012 with PCCB
Porsche 997 turbo -2007 to 2012 WITHOUT PCCB
Porsche 997 turbo - 2007 to 2012 with PCCB
Porsche 991 turbo / turbo S - 2012 to 2018 WITHOUT PCCB
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Please Note:
The Porsche gift / collection range is subject to availability from the supplier and may take up to anything between 14 - 30 days for delivery if the item is not in stock in our supplier's warehouse.
- Porsche 997 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 GT2 2007>>
- Porsche 997 MKII GT3 2010>>
- Porsche 997 MKII Turbo 2009>>
- Porsche 997 MKII GT2 RS 2011>>
- Porsche 991 Carrera C2 3.4L (350Bhp)
- Porsche 991 Carrera C4 3.4L (350Bhp)
- Porsche 991 Turbo 3.8L (520bhp)
- Porsche 991 Turbo S 3.8L (560Bhp)
- Porsche 991 Turbo Coupe 3.8L (540 Bhp)
- Porsche 991 Turbo S Coupe 3.8L (580 Bhp)
- Porsche 991 Turbo Cabriolet 3.8L (540 Bhp)
- Porsche 991 Turbo S Cabriolet 3.8L (580 Bhp)

One kit per axle

Fits: - Front 350mm Disc
Porsche 996 Carrera 4S - 2001 to 2005
Porsche 997 Carrera S / 4 S - 2005 to 2008
Porsche 996.1 GT3 - 1999 to 2002
Porsche 996 turbo - 2000 to 2005
Porsche 981 Cayman / Boxster 2.7ltr - 2005 to 2008
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche Cayman 2.7L 987C 2006-08

One kit per axle

Fits: - Rear 350mm Disc
Porsche 996 Carrera 4S - 2001 to 2005
Porsche 996 turbo - 2000 to 2005
Porsche 996.1 GT3 - 1999 to 2002
Porsche 997.1 Carrera S / Carrera 4S - 2005 to 2008
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>

One kit per axle

Fits: - Rear 350mm Disc
Porsche 996 Carrera 4S - 2001 to 2005
Porsche 996 turbo - 2000 to 2005
Porsche 996.1 GT3 - 1999 to 2002
Porsche 997.1 Carrera S / Carrera 4S - 2005 to 2008
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BCS-10
The product you are viewing cross references to these numbers
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>

One kit per axle

Fits: - Rear
Porsche 991.2 Carrera / Carrera 2 - 2016 to 2018 with PCCB
Porsche 991 turbo / turbo S - 2012 to 2018 with PCCB
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BCS-09
The product you are viewing cross references to these numbers
- Porsche 991 Turbo 3.8L (520bhp)
- Porsche 991 Turbo S 3.8L (560Bhp)
- Porsche 991 Carrera 2 3.0L (370 Bhp)
- Porsche 991 Carrera 2S 3.0L (420 Bhp)
- Porsche 991 Carrera 4 3.0L (370 Bhp)
- Porsche 991 Carrera 4S 3.0L (420 Bhp)
- Porsche 991 Cabriolet 2 3.0L (370 Bhp)
- Porsche 991 Cabriolet 2S 3.0L (420 Bhp)
- Porsche 991 Cabriolet 4 3.0L (370 Bhp)
- Porsche 991 Cabriolet 4S 3.0L (420 Bhp)
- Porsche 991 Targa 4 3.0L (370 Bhp)
- Porsche 991 Targa 4S 3.0L (420 Bhp)
- Porsche 991 Turbo Coupe 3.8L (540 Bhp)
- Porsche 991 Turbo S Coupe 3.8L (580 Bhp)
- Porsche 991 Turbo Cabriolet 3.8L (540 Bhp)
- Porsche 991 Turbo S Cabriolet 3.8L (580 Bhp)

One kit per axle

Fits: - Rear
Porsche 981 Cayman GT4 - 2015 to 2015 with or without PCCB
Porsche 718 Cayman GT4 - 2017 Onwards with or without PCCB
Porsche 718 Boxster Spyder - 2017 Onwards with or without PCCB
Porsche 718 Cayman GT4 RS with or without PCCB
Porsche 991.1 GT3 / GT3 RS - 2012 to 2018 without PCCB
Porsche 991 GT3 / GT3RS / GT2RS - 2012 to 2018 with PCCB
Porsche 992 911 GT3 - 2019 Onwards with or without PCCB
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BCS-08
The product you are viewing cross references to these numbers
- Porsche 991 GT3 3.8L (475Bhp)
- Porsche 991 GT3 RS 4.0L (500Bhp)
- Porsche 991 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp)
- Porsche 992 GT3 4.0L / 992 S/T 4.0L
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

One kit per axle

Fits: - Front 340mm Disc and Rear 325mm Disc
Porsche 996 Carrera - 1997 to 2005
Porsche 997.1 Carrera - 2005 to 2008
Porsche 986 Boxster S - 1999 to 2004
Porsche 987 Boxster S - 2005 to 2012
Porsche 987 Cayman S / R - 2005 to 2012
Rear Only - 325mm Disc
Porsche 981 Cayman / Boxster - 2012 to 2016
Porsche 981 Cayman S / Boxster S / GTS - 2012 to 2016
718 Cayman 2.0ltr / Boxster 2.0ltr - 2017 Onwards
Porsche 718 Cayman S 2.5ltr / Boxster S 2.5ltr / GTS 2.5ltr - 2017 Onwards
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BCS-06
The product you are viewing cross references to these numbers
- 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 S 987 MKII 3.4L 2009-2012
- Porsche Boxster S 981 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp)
- Porsche Boxster 718 2.0L PDK (300 Bhp)
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- Porsche Boxster T 718 2.0L Manual (300 Bhp)
- Porsche Boxster T 718 2.0L PDK (300 Bhp)
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 997 Carrera 2 3.6L 2005>>
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman S 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300Bhp)
- Porsche Cayman 718 2.0L PDK (300Bhp)
- Porsche Cayman S 718 2.5L Manual (350Bhp)
- Porsche Cayman S 718 2.5L PDK (350Bhp)
- Porsche Cayman T 718 2.0L Manual (300Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)

One kit per axle

Fits: - Front and Rear - 350mm Disc
Porsche 997.2 Carrera - 2009 to 2012
Porsche 991.1 Carrera / Carrera 4 - 2012 to 2016
Porsche 991.1 Carrera S / Carrera 4S/ GTS - 2012 to 2016
Porsche 991.2 Carrera / Carrera 4/ T - 2016 to 2018
Porsche 991.2 Carrera S / Carrera 4S/ GTS - 2016 to 2018
Porsche 981 Boxster Spyder - 2016
Front Only - 350mm Disc
Porsche 981 Cayman S / Boxster S / GTS 2.5ltr - 2012 to 2016
Porsche 718 Cayman 2.0ltr / Boxster 2.0ltr - 2017 Onwards
Porsche 718 Cayman S / Boxster S / GTS 2.5ltr - 2017 Onwards
Rear Only - 350mm Disc
Porsche 996 GT3 Cup
Porsche 996.2 GT3 / GT2
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BCS-05
The product you are viewing cross references to these numbers
- Porsche Boxster S 981 3.4L 2012-16
- Porsche Boxster Spyder 3.8L 2016
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
- Porsche 997 MKII Carrera C2 3.6L 2009>>
- Porsche 997 MKII Carrera C4 3.6L 2009>>
- Porsche 991 Carrera C2 3.4L (350Bhp)
- Porsche 991 Carrera C2S 3.8L (400Bhp)
- Porsche 991 Carrera C4 3.4L (350Bhp)
- Porsche 991 Carrera C4S 3.8L (400Bhp)
- Porsche 991 Carrera 2 3.0L (370 Bhp)
- Porsche 991 Carrera 2S 3.0L (420 Bhp)
- Porsche 991 Carrera 4 3.0L (370 Bhp)
- Porsche 991 Carrera 4S 3.0L (420 Bhp)
- Porsche 991 Cabriolet 2 3.0L (370 Bhp)
- Porsche 991 Cabriolet 2S 3.0L (420 Bhp)
- Porsche 991 Cabriolet 4 3.0L (370 Bhp)
- Porsche 991 Cabriolet 4S 3.0L (420 Bhp)
- Porsche 991 Targa 4 3.0L (370 Bhp)
- Porsche 991 Targa 4S 3.0L (420 Bhp)
- Porsche Cayman S 3.4L 981 2013-16

One kit per axle
Fits: - Front and Rear
Porsche 997 Carrera - 2005 to 2008 with PCCB
Porsche 996 GT3 / GT2 - 1999 to 2005 with PCCB
Porsche 996 turbo - 2000 to 2005 with PCCB
Porsche 987 Cayman S / R 2005 to 2008 with PCCB
Porsche 987 Boxster S - 2005 to 2008 with PCCB
Porsche 981 Cayman S / GTS - 2013 to 2016 with PCCB
Porsche 981 Boxster S / GTS - 2013 to 2016 with PCCB
Front Only
Porsche 991.1 Carrera - 2012 to 2016 with PCCB
Porsche 991.2 Carrera S /4S / GTS - 2016 to 2018
Porsche 911 GT3 Cup
Porsche 911 GT3 / GT2 - 2003 to 2005
Porsche 997.1 GT3 / GT2 - 2007 to 2008 WITHOUT PCCB FRONT
Porsche 997 turbo - 2007 to 2012 WITHOUT PCCB
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BCS-05
The product you are viewing cross references to these numbers
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche 997 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 GT2 2007>>
- Porsche 997 MKII Turbo 2009>>
- Porsche 991 Carrera C2 3.4L (350Bhp)
- Porsche 991 Carrera C2S 3.8L (400Bhp)
- Porsche 991 Carrera C4 3.4L (350Bhp)
- Porsche 991 Carrera C4S 3.8L (400Bhp)
- Porsche 991 Carrera 2S 3.0L (420 Bhp)
- Porsche 991 Carrera 4S 3.0L (420 Bhp)
- Porsche 991 Cabriolet 2S 3.0L (420 Bhp)
- Porsche 991 Cabriolet 4S 3.0L (420 Bhp)
- Porsche 991 Targa 4S 3.0L (420 Bhp)
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S 3.4L 981 2013-16

One kit per axle

Fits: - Front 340mm disc and Rear 325mm disc
Porsche 996 Carrera - 1997 to 2005
Porsche 997.1 Carrera - 2005 to 2008
Porsche 986 Boxster S - 1999 to 2004
Porsche 987 Boxster S - 2009 to 2012
Porsche 987 Cayman S / Cayman R - 2005 to 2008
Rear Only - 325mm Disc
Porsche 981 Cayman / Boxster - 2012 to 2016
Porsche 981 Cayman S / Boxster S / GTS - 2012 to 2016
Porsche 718 Cayman / Boxster 2.0ltr - 2017 Onwards
Porsche 718 Cayman / Boxster S / GTS 2.5ltr - 2017 Onwards
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BCS-04
The product you are viewing cross references to these numbers
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster S 981 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp)
- Porsche Boxster 718 2.0L PDK (300 Bhp)
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- Porsche Boxster T 718 2.0L Manual (300 Bhp)
- Porsche Boxster T 718 2.0L PDK (300 Bhp)
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 997 Carrera 2 3.6L 2005>>
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300Bhp)
- Porsche Cayman 718 2.0L PDK (300Bhp)
- Porsche Cayman S 718 2.5L Manual (350Bhp)
- Porsche Cayman S 718 2.5L PDK (350Bhp)
- Porsche Cayman T 718 2.0L Manual (300Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)

One kit per axle

Fits: - Front and Rear
Porsche 997.2 Carrera - 2009 to 2012
Porsche 991.1 Carrera / C4 - 2012 to 2016
Porsche 991.1 Carrera S / 4S / GTS - 2012 to 2016
Porsche 991.2 Carrera / C4 / T - 2016 to 2018
Front Only
Porsche 991 turbo / turbo S - 2012 to 2018 WITHOUT PCCB
Porsche 981 Cayman S / Boxster S/ GTS - 2012 to 2016
Porsche 718 Cayman / Boxster 2.0ltr - 2017 Onwards
Porsche 718 Cayman S / Boxster S / GTS 2.5ltr - 2017 Onwards
Rear Only
Porsche 991.2 Carrera S / 4S / GTS - 2016 to 2018
Porsche 996 GT3 Cup
Porsche 996.2 GT3 / GT2 - 2001 to 2005
Porsche 981 Boxster Spyder - 2016
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BCS-03
The product you are viewing cross references to these numbers
- Porsche Boxster S 981 3.4L 2012-16
- Porsche Boxster Spyder 3.8L 2016
- Porsche Boxster 718 2.0L Manual (300 Bhp)
- Porsche Boxster 718 2.0L PDK (300 Bhp)
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- Porsche Boxster T 718 2.0L Manual (300 Bhp)
- Porsche Boxster T 718 2.0L PDK (300 Bhp)
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 997 MKII Carrera C2 3.6L 2009>>
- Porsche 991 Carrera C2 3.4L (350Bhp)
- Porsche 991 Carrera C2S 3.8L (400Bhp)
- Porsche 991 Carrera C4 3.4L (350Bhp)
- Porsche 991 Carrera C4S 3.8L (400Bhp)
- Porsche 991 Turbo 3.8L (520bhp)
- Porsche 991 Turbo S 3.8L (560Bhp)
- Porsche 991 Carrera 2 3.0L (370 Bhp)
- Porsche 991 Carrera 2S 3.0L (420 Bhp)
- Porsche 991 Carrera 4 3.0L (370 Bhp)
- Porsche 991 Carrera 4S 3.0L (420 Bhp)
- Porsche 991 Cabriolet 2 3.0L (370 Bhp)
- Porsche 991 Cabriolet 2S 3.0L (420 Bhp)
- Porsche 991 Cabriolet 4 3.0L (370 Bhp)
- Porsche 991 Cabriolet 4S 3.0L (420 Bhp)
- Porsche 991 Targa 4 3.0L (370 Bhp)
- Porsche 991 Targa 4S 3.0L (420 Bhp)
- Porsche 991 Turbo Coupe 3.8L (540 Bhp)
- Porsche 991 Turbo S Coupe 3.8L (580 Bhp)
- Porsche 991 Turbo Cabriolet 3.8L (540 Bhp)
- Porsche 991 Turbo S Cabriolet 3.8L (580 Bhp)
- Porsche Cayman S 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300Bhp)
- Porsche Cayman 718 2.0L PDK (300Bhp)
- Porsche Cayman S 718 2.5L Manual (350Bhp)
- Porsche Cayman S 718 2.5L PDK (350Bhp)
- Porsche Cayman T 718 2.0L Manual (300Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)

One kit per axle

Fits:
Porsche 997 turbo - 2007 to 2012 with PCCB
Porsche 997 GT3 Cup
Porsche 997.1 GT3 / GT2 - 2007 to 2008 with PCCB
Porsche 997.2 GT3 / GT2 - 2010 to 2012 WITHOUT PCCB
Porsche 991 turbo / turbo S - 2012 to 2018 with PCCB
Porsche 991.2 Carrera 2 / 4 / 4S - 2016 to 2018 with PCCB
Porsche 991 GT3 / GT3RS - 2012 to 2018 WITHOUT PCCB
Porsche 991 GT3 /GT3RS / GT2RS 2012 to 2018 with PCCB
Porsche 992 GT3 - 2018 Onwards with or without PCCB
Porsche 981 Cayman GT4 - 2015 to 2016 with or without PCCB
Porsche 718 Cayman GT4 RS with or without PCCB
Porsche 718 Cayman GT4,
Porsche 718 Boxster Spyder with or without PCCB
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BCS-02
The product you are viewing cross references to these numbers
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche 997 TURBO 2007>>
- Porsche 997 GT3 2007>>
- Porsche 997 GT2 2007>>
- Porsche 997 MKII GT3 2010>>
- Porsche 997 MKII Turbo 2009>>
- Porsche 997 MKII GT2 RS 2011>>
- Porsche 991 Turbo 3.8L (520bhp)
- Porsche 991 Turbo S 3.8L (560Bhp)
- Porsche 991 GT3 3.8L (475Bhp)
- Porsche 991 GT3 RS 4.0L (500Bhp)
- Porsche 991 Carrera 2 3.0L (370 Bhp)
- Porsche 991 Carrera 2S 3.0L (420 Bhp)
- Porsche 991 Carrera 4 3.0L (370 Bhp)
- Porsche 991 Carrera 4S 3.0L (420 Bhp)
- Porsche 991 Cabriolet 2 3.0L (370 Bhp)
- Porsche 991 Cabriolet 2S 3.0L (420 Bhp)
- Porsche 991 Cabriolet 4 3.0L (370 Bhp)
- Porsche 991 Cabriolet 4S 3.0L (420 Bhp)
- Porsche 991 Targa 4 3.0L (370 Bhp)
- Porsche 991 Targa 4S 3.0L (420 Bhp)
- Porsche 991 Turbo Coupe 3.8L (540 Bhp)
- Porsche 991 Turbo S Coupe 3.8L (580 Bhp)
- Porsche 991 Turbo Cabriolet 3.8L (540 Bhp)
- Porsche 991 Turbo S Cabriolet 3.8L (580 Bhp)
- Porsche 991 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp)
- Porsche 992 GT3 4.0L / 992 S/T 4.0L
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L

One kit per axle

Fits:
Porsche 996 Carrera 4S - 2001 to 2005
Porsche 996 turbo - 2000 to 2005
Porsche 996.1 GT3 - 1999 to 2002
Porsche 997.1 Carrera S / Carrera 4S - 2005 to 2008
Porsche 981 Boxster 2.7ltr - 2012 to 2016
Porsche 981 Cayman 2.7ltr - 2013 to 2016 - 340mm front disc
Porsche 981 Boxster Spyder 3.8ltr - 2016
Girodisc caliper studs are a direct replacement for the OEM caliper bolts.
A must-have item for those who track or race their cars often. The factory bolts will quickly strip out the threads in the expensive wheel uprights, from removing the calipers for maintenance. These Cup-style caliper studs will eliminate this problem and quickly pay for themselves. They also allow for quicker and easier caliper installation by guiding the calipers into position. Manufactured from aerospace quality 17-4 PH stainless steel for high strength and corrosion resistance. One kit includes 4 studs, nuts, and washers, complete for one axle. Two kits are required for the front and rear.
These Brake caliper stud kits now include the highest quality available, ARP 12-point nuts. This is a no-compromise solution. Made from high-strength stainless steel, these nuts will not corrode, have a 180,000 PSI tensile strength, and are compact in size for a better fit in the brake caliper bore.
Please Note
If you are not familiar with, or confident that you understand how to replace the caliper bolts with studs please have a certified mechanic perform the installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BCS-01
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster Spyder 3.8L 2016
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche Cayman 2.7L 981 2013-16

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) 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 991.2 GT2 RS Clubsport
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.
A2-250
The product you are viewing cross references to these numbers
- Porsche 991 GT2 RS 3.8L PDK (700 bhp)