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

This GiroDisc kit includes a pair of slotted rear brake rotors specifically made for the 2018 through 2021 Subaru WRX STI. These rotors are designed to work with your factory brake calipers, but you will need to trim your rear brake pads to ensure proper fitment. GiroDisc is known for making well-built brake components that improve performance, and these rotors are no exception.

The rotors themselves are constructed from a high-carbon iron alloy, which is a strong material that holds up well under the heat generated during braking. The slots machined into the rotor surface are a key feature. They help to sweep away brake dust and gasses that can build up between the pad and rotor surface. This keeps the pad material cleaner and allows it to make better contact with the rotor, which can lead to more consistent braking performance, especially during spirited driving or track use. The directional vane design also helps to dissipate heat more effectively, reducing the risk of brake fade.

When you're looking to get the most out of your braking system, especially if you plan on doing some performance driving, these GiroDisc rotors are a solid option. Just remember that you'll need to trim your rear pads to make them fit. This is a common modification when upgrading to slotted rotors on certain Subaru models, and it ensures that the pads can seat correctly against the rotor surface without interference.