Quick view 359/11 (5mm) Motorsport Black Spacer (for use with wheel studs) MSRP: Was: Now: $80.00 Add to Cart
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Quick view 50179-00-10 Extended Lug Bolts 10 Pack - for Track and Street - SILVER MSRP: Was: Now: $80.00 Add to Cart
Quick view Girodisc 991 GT3 w/OEM Iron Rotors - Front 380mm 2-piece Rotor Set A1-146 MSRP: Was: Now: $1,595.00 Add to Cart
Quick view 340/11 (15mm) Hubcentric Black Spacer/Black Wheel Bolts MSRP: Was: Now: $200.00 Add to Cart
Quick view 372 RSS XL Front Lower Control Arms (987, 997/991 C2, C4, Turbo, 981/982/718) MSRP: Was: Now: $1,200.00 Add to Cart
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Quick view 30190 Rear Camber/Alignment Shim (1mm) - 991 GT3/GT2/RS MSRP: Was: Now: $14.00 Add to Cart
![Girodisc Front 380mm 2-piece Rotor for Porsche 991 GT3 w/OEM Iron Rotors
Part Number: A1-146
The Girodisc system is a direct replacement for the OE disc on the 991 GT3 and GT3 RS with OEM iron rotors. No modifications are necessary, allows use of factory unmodified pads unlike most aftermarket solutions for this application. The disc will bolt directly to the car and work with OE calipers perfectly. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency.
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. Center lock drive pin set - enough for two rotors [+$200.00]
Sold/priced per pair.](https://cdn11.bigcommerce.com/s-kmq200x97v/images/stencil/500x659/products/273/1292/380GT4__68667.1554499650.jpg?c=2 "Girodisc Front 380mm 2-piece Rotor for Porsche 991 GT3 w/OEM Iron Rotors
Part Number: A1-146
The Girodisc system is a direct replacement for the OE disc on the 991 GT3 and GT3 RS with OEM iron rotors. No modifications are necessary, allows use of factory unmodified pads unlike most aftermarket solutions for this application. The disc will bolt directly to the car and work with OE calipers perfectly. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency.
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. Center lock drive pin set - enough for two rotors [+$200.00]
Sold/priced per pair.")
