For 997.1 GT3/GT2’s that were originally equipped with the OEM 380mm rotors and are now running our direct replacement iron rotors.

Too much abuse can lead to a worn down rotor or worse, an unsalvageable one. Girodisc offers Replacement rings for their 2-piece systems, available in 350 or 380mm depending on your application.

Front wear can differ from Rear wear, and habits and practices of driving can either lengthen or shorten the life of your components. Replace both rings at the same time to ensure future damage isn’t focused on one hub/knuckle, and to improve drivability/feel while adding safety and comfort to peace of mind.

The Girodisc system is a direct replacement for the OE disc on all 997.2 GT3/GT2’s, both PCCB and non-PCCB equipped vehicles.

The Girodisc system is a direct replacement for the OE disc with the addition of our provided caliper spacers. Our rotor is slightly larger than the OEM rotor at 350mm versus 340mm providing greater braking force and cooling capacity. The Girodisc front rotors are approx 21.0 lbs vs. 24.4 lbs for the stock units. This reduction in rotational and unsprung weight allows for quicker acceleration and suspension response.

The central hat section of their rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from their 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 10 high strength alloy steel drive pins, manufactured by Girodisc in the USA to their 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.

Sold/priced in pairs.

Model Fitment:
Porsche 991 C4S/C2S
Porsche 997.2 GT3/GT2

Upgrade or replace your HANS tethers and post anchors with this kit. For use with the Sport II HANS Device, this tether upgrade kit contains everything needed to upgrade from quick click anchors or to completely replace all anchoring components on an existing post anchor HANS device. Comes with tether strap, four screws, two mounting brackets and two helmet post anchors. The post anchors are for SAH that have a screw-in connection and do not require a nutwasher.

NEW & HOT, white 100% cotton LONG SLEEVE Beefy Tee featuring a full-back screen printed Holley Retro artwork. Retro logo and engine are also featured on the left chest.

Hanes Beefy Tee preshrunk long sleeve t-shirt in Maroon, featuring the distressed Holley Speed Shop logo that can be seen on Holley’s shop truck! Available in sizes S-3XL.

HPS 1-1/2″ – 2-1/2″ (38mm – 63mm) ID with 3″ length high temp 4-ply reinforced silicone reducer coupler hose meet and exceed SAEJ20 industry standards, ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications. HPS performance silicone reducing transition coupling hose is designed and engineered to meet high performance requirements specified in various industry standards, such as automotive racing industry, turbo diesel pickup truck, heavy duty equipment and machine, custom cooling system, DIY turbo intercooler piping fabrication, commercial trucking, buses and coaches, marine, military vehicles, aerospace, generators, agricultural tractors, and general construction industry.

Technical SpecificationProduct type: Silicone reducer coupler transition hose
Hose Inside Diameter: 1.5″ – 2.5″ (38mm – 63mm)
Hose Outside Diameter: 1.89″ – 2.88″ (48mm – 73mm)
Hose Length: 3″ (76mm)
Reinforced layer: polyester
Wall Thickness: 4.5mm (+/- 0.5mm)
Color: Blue
Temperature Range: -65 deg. F to +350 deg. F (177 deg. C)
Maximum Working Pressure: 80 psi
UV and ozone resistant

Remark: Silicone hose is NOT compatible with fuel or oil
However it is compatible with air, water and anti-freeze such as coolant.

HPS 1-1/8″ – 1-7/8″ (28mm – 48mm) ID with 3″ length high temp 4-ply reinforced silicone reducer coupler hose meet and exceed SAEJ20 industry standards, ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications. HPS performance silicone reducing transition coupling hose is designed and engineered to meet high performance requirements specified in various industry standards, such as automotive racing industry, turbo diesel pickup truck, heavy duty equipment and machine, custom cooling system, DIY turbo intercooler piping fabrication, commercial trucking, buses and coaches, marine, military vehicles, aerospace, generators, agricultural tractors, and general construction industry.

Technical SpecificationProduct type: Silicone reducer coupler transition hose
Hose Inside Diameter: 1.12″ – 1.87″ (28mm – 48mm)
Hose Outside Diameter: 1.5″ – 2.29″ (38mm – 58mm)
Hose Length: 3″ (76mm)
Reinforced layer: polyester
Wall Thickness: 4.5mm (+/- 0.5mm)
Color: Blue
Temperature Range: -65 deg. F to +350 deg. F (177 deg. C)
Maximum Working Pressure: 100 psi
UV and ozone resistant

Remark: Silicone hose is NOT compatible with fuel or oil
However it is compatible with air, water and anti-freeze such as coolant.