Girodisc rear brake discs for Porsche Boxster/Cayman 981/982/987

Description

The Girodisc system is a direct replacement for the stock disc on the 718 with stock iron discs. No modifications are required and allows the use of unmodified stock pads, unlike most aftermarket solutions for this application. The disc bolts directly to the car and works seamlessly with the stock calipers. By upgrading your brakes with high performance lightweight replacements as opposed to a big brake kit, your factory bias is maintained as well as the effectiveness of your ABS.

The center section of the disc is manufactured from aircraft-specification 6061-T6 aluminum sourced strictly in the USA. The disc is manufactured from cast iron in the USA and machined from start to finish in-house by Girodisc. The rotor uses a curved vane design, developed in racing to act as a centrifugal pump and force cooling air through the disc.

The disc and hat have a floating mounting system, which uses 12 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for long lasting corrosion resistance. These pins support the load of braking actions while maintaining axial and radial float between the hat and disc. The pins are secured by grade 12.9 cap screws with hardened washers. To prevent the discs from making noise when cold, the pins are mounted with anti-noise spring washers on the disc side, which allows the disc to grow with thermal expansion but eliminates the rattle and noise associated with floating discs. This float also allows the disc to self-center between the pads.

Once the Girodisc system is in place, simply replace the cast iron disc when necessary.

Sold/priced per pair.

Diameter x Thickness (Girodisc): 350 x 28,0 mm

Stock items

Compatibilities:

Porsche / Boxster (2nd Gen) 2004-2012 / Convertible (987) 2004-2012 / Boxster 2.9 2009-2012
Porsche / Boxster (2nd Gen) 2004-2012 / Convertible (987) 2004-2012 / Boxster S 3.4 2008-2012
Porsche / Boxster (2nd Gen) 2004-2012 / Roadster (987) 2007-2012 / Boxster Spyder 3.4 2009-2012
Porsche / Boxster (2nd Gen) 2004-2012 / Roadster (987) 2007-2012 / Boxster Spyder RS ​​3.4 2007-2008
Porsche / Boxster (3rd Gen) 2012-2016 / Convertible (981) 2012-2016 / Boxster GTS 3.4 2014-2016
Porsche / Boxster (3rd Gen) 2012-2016 / Convertible (981) 2012-2016 / Boxster S 3.4 2012-2016
Porsche / Boxster (3rd Gen) 2012-2016 / Roadster (981) 2015-2016 / Boxster Spyder 3.8 2015-2016
Porsche / Boxster (4th Gen) 2016-Present / Convertible (982) 2016-Present / 718 Boxster 2.0 Turbo 2016-Present
Porsche / Boxster (4th Gen) 2016-Present / Convertible (982) 2016-Present / 718 Boxster GTS 2.5 Turbo 2017-2020
Porsche / Boxster (4th Gen) 2016-Present / Convertible (982) 2016-Present / 718 Boxster GTS 4.0 Turbo 2020-Present
Porsche / Boxster (4th Gen) 2016-Present / Convertible (982) 2016-Present / 718 Boxster S 2.5 Turbo 2016-Present
Porsche / Cayman (1st Gen) 2005-2013 / Coupe (987C) 2005-2013 / Cayman 2.9 2009-2012
Porsche / Cayman (1st Gen) 2005-2013 / Coupe (987C) 2005-2013 / Cayman R 3.4 2010-2012
Porsche / Cayman (1st Gen) 2005-2013 / Coupe (987C) 2005-2013 / Cayman S 3.4 2009-2013
Porsche / Cayman (1st Gen) 2005-2013 / Coupe (987C) 2005-2013 / Cayman S Sport 3.4 2008-2012
Porsche / Cayman (2nd Gen) 2013-2016 / Coupe (981C) 2013-2016 / Cayman 2.7 2013-2016
Porsche / Cayman (2nd Gen) 2013-2016 / Coupe (981C) 2013-2016 / Cayman GTS 3.4 2014-2016
Porsche / Cayman (2nd Gen) 2013-2016 / Coupe (981C) 2013-2016 / Cayman S 3.4 2013-2016
Porsche / Cayman (3rd Gen) 2016-Present / Coupe (982C) 2016-Present / 718 Cayman 2.0 Turbo 2016-Present
Porsche / Cayman (3rd Gen) 2016-Present / Coupe (982C) 2016-Present / 718 Cayman S 2.5 Turbo 2016-Present
Porsche / Cayman (3rd Gen) 2016-Present / Coupe (982C) 2016-Present / 718 Cayman GTS 2.5 Turbo 2017-2020
Porsche / Cayman (3rd Gen) 2016-Present / Coupe (982C) 2016-Present / 718 Cayman GTS 4.0 2020-Present
Porsche / Boxster (4th Gen) 2016-Present / Convertible (982) 2016-Present / 718 Boxster T 2.0 Turbo 2020-Present
Porsche / Cayman (3rd Gen) 2016-Present / Coupe (982C) 2016-Present / 718 Cayman T 2.0 Turbo 2020-Present