GiroDisc 2018+ Subaru WRX STI (Requires Trimmed Rear Pads) Slotted Rear Rings

GiroDisc is well-known for making high-performance brake components, and these slotted rear rotor rings for the 2018 and newer Subaru WRX STI are a prime example. If you're looking to upgrade your braking system for more consistent performance, especially under demanding conditions, these rings are a solid choice. They are designed to replace the iron rotor portion of your factory two-piece brake setup, allowing you to keep your original hats and save on cost while still getting a significant performance improvement.

These rings are made from a high-carbon iron alloy, which is a strong material that holds up well to the heat generated during hard braking. The key feature here is the slotting pattern. GiroDisc's unique slot design helps to sweep away dust and gas that can build up between the pad and the rotor surface. This keeps the pad surface cleaner and allows for more consistent contact, which means more reliable stopping power when you need it most. Because these are replacement rings, they are designed to fit directly onto your existing GiroDisc or OEM two-piece rotor hats, making the installation process more straightforward than a full replacement rotor. Keep in mind that for this specific application on the 2018+ WRX STI, you will need to trim your rear brake pads to ensure proper fitment with the rotor rings.

When you're upgrading your braking system, it's important to consider the entire package. These GiroDisc rotor rings are a significant step up for performance, but they work best when paired with quality brake pads that can take advantage of the improved rotor surface. If you're planning on track days or aggressive driving, ensuring your brake fluid is fresh and properly bled is also crucial for optimal performance. These rings are a well-built component that can make a noticeable difference in your car's stopping ability.