Girodisc Porsche 410mm Front Rotors
The Girodisc 410mm Front Rotors for Porsche 991 and 992 models deliver exceptional braking performance and longevity without the downsides of heavy carbon ceramics. Designed as a direct replacement for the OE discs, these rotors maintain factory brake bias and ABS efficiency while allowing a broader range of high-performance pad choices.
Lightweight, Track-Proven Replacement Rotors
This system is a direct replacement for the factory iron rotors, provided you use the same pad shape found on 991/992 GT3 and Turbo models equipped with iron brakes. The smaller annulus (pad swept height) versus PCCB pads reduces weight and expands your pad selection options, while still delivering exceptional heat management under demanding track conditions.
Features
The central hat section is machined from U.S.-sourced 6061-T6 aircraft-grade aluminum for maximum strength and minimal unsprung mass. The rotor rings are made from Girodisc’s proprietary cast iron, poured and fully machined in-house in the USA. Each rotor features a curved vane design that acts as a centrifugal pump to move cooling air efficiently through the disc, reducing heat fade and extending pad life.
The floating mount system uses 12 high-strength alloy steel drive pins, cadmium plated for corrosion resistance and secured with class 12.9 cap screws and hardened washers. Anti-noise spring washers allow the rotors to expand under heat while eliminating the rattle typically associated with floating systems. This floating design also lets the rotor self-center between the pads for consistent pedal feel and reduced drag.
Once the Girodisc system is installed, future rotor service is simple—only the iron rotor rings need replacement when worn, keeping your long-term costs and downtime low.
FAQs: Porsche 410mm Front Rotors
Do these rotors fit PCCB-equipped cars? Yes, but you must use the smaller pad shape from 991/992 GT3 or Turbo models originally fitted with iron brakes. The PCCB pads are too large for these discs.
Will these rotors affect my ABS or brake bias? No, Girodisc designs their rotors to maintain the factory brake balance and ABS performance of your Porsche.
How much lighter are these than OEM rotors? The weight varies by application, but Girodisc rotors typically save several pounds per corner, reducing rotational and unsprung weight for sharper handling and acceleration.
Do I need special hardware to install them? No modifications are needed. The Girodisc rotors bolt directly to your car and work with your OEM calipers and mounting hardware.
Can I reuse the aluminum hats when replacing rotors? Yes — the system is designed so that when the iron rings reach end of life, you can simply install new rings onto the existing hats.
Upgrade your Porsche’s stopping power and feel with the precision-engineered Girodisc 410mm Front Rotors — built for drivers who demand race-level performance on both street and track.
