Porsche 991 GT3 GiroDisc Brake Rotors
Excluding GST |
Upgrade the factory brakes or replace worn out rotors with premium GiroDisc brake rotors. Perfect for track use and a cost effective premium brake replacement solution vs PCCB. The central hat section of each rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from 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 larger rotors are greater heat sinks resulting in increased performance on the track, a reduction in brake fade, and improved brake component life. The rotor and hat have a floating mount system, which utilizes 8 or 10 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 grade 12 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 - contact us for replacements. Converting to iron front rotors on PCCB equipped cars requires using pads designed for iron rotor equipped GT3's. FEATURES: Fits all Porsche 991 GT3 models (2014-2016) Lighter than stock brakes Perfect solution for vehicles seeing track use - saving you from costly OE ceramic replacements Direct factory replacement Improved braking performance Reduced unsprung weight Increased rotor life Greater cooling efficiency Retains factory e-brake Premium grade; made in U.S.A. IMPORTANT NOTE When converting from carbon ceramic brakes to GiroDisc iron rotors we STRONGLY recommend replacing all four rotors in order to maintain the factory brake bias and controlled braking in all driving conditions.