DESCRIPTION
Upgrade the braking performance of your 2020 Subaru WRX w/ Brembo Calipers Performance Pkg with Girodisc 2-piece Brake Rotors A2-095.
The Girodisc system is a direct replacement for the original disc. However, the OEM pads, along with some aftermarket brake pads, will need to be modified before installation to work with our assemblies. This modification is necessary to accommodate the hardware arrangement of our two-piece discs while retaining the OEM parking brake. It simply requires grinding down the backing plate of the brake pad to match the arc of the pad material. A disclaimer and instructions for this modification are included with the discs. All brake pads sold by Girodisc for this application have already been modified on our CNC equipment for a plug-and-play solution.
By upgrading your brakes with lightweight high-performance replacements instead of a big brake kit, your factory bias is maintained as well as your ABS efficiency. The Girodisc rear rotors are approximately 11 lbs vs. 18 lbs for the stock units. This reduction in rotational and unsprung weight allows for quicker acceleration and improved suspension response.
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 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 feature a floating mount system, which utilizes 10 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 take the load from braking actions while maintaining axial and radial float between the hat and disc. The pins are secured by class 12.9 cap screws with hardened washers. To prevent noise when cold, the pins are mounted with anti-noise spring washers on the rotor side, allowing the rotor to expand with heat while eliminating 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.
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