GiroDisc Porsche 911 Carrera S/4S/GTS (991.1) 350mm Slotted Front Rings

These GiroDisc 350mm front rotor rings are made from a high-carbon iron alloy, a material chosen for its ability to handle the heat generated during spirited driving and track use. Unlike a full one-piece rotor, these are designed as replacement rings that mount to your existing aluminum hats. This design not only helps manage thermal expansion but also makes them a more cost-effective solution for high-performance vehicles like the Porsche 911 Carrera S, 4S, and GTS (991.1 generation) when it's time to replace worn rotors.

The key feature here is the slotting pattern. GiroDisc uses a unique, curved slot design that works to sweep away dust and gas that can build up between the pad and the rotor surface. This constant cleaning action helps maintain a consistent grip between your brake pads and the rotor, which is crucial for predictable stopping power, especially under heavy braking. The slots also help to dissipate heat, further reducing the risk of brake fade during demanding driving conditions. This attention to thermal management and pad cleaning is what sets these rings apart for performance applications.

When installing these rotor rings, you'll be working with your car's original aluminum brake hats. This means you'll need to carefully transfer the rings to the hats, ensuring proper alignment and secure fastening. It's a process that requires attention to detail, but it's a well-established method for high-performance brake systems. Having these high-carbon iron rings ready to go means you can get back on the road or track with improved braking performance and confidence.