GiroDisc Rear Brake Rotors Slotted Pair Subaru STI 2018-2021 | A2-185

Fitment: This set of GiroDisc brake rotors is designed specifically for 2018 - 2021 Subaru STI models. Note that it requires trimmed rear brake pads for clearance. Features: These are rear rotors sold as a pair. They're a direct replacement upgrade for your factory rotors. Upgrading to these lightweight, high - performance rotors maintains your factory setup, specs, and ABS efficiency. The reduced rotational and unsprung weight enables quicker acceleration and better suspension response. The central hat of each rotor is crafted from U.S. sourced 6061 - T6 aircraft - spec aluminum. The disc is made from Girodisc's proprietary cast iron, poured in the USA and machined in - house. The curved vane design acts like a centrifugal pump to force cooling air through the disc. The rotor and hat use a floating mount system with 10 high - strength alloy steel drive pins made in the USA by Girodisc. These pins are cadmium - plated for corrosion resistance and secured by grade class 12.9 screws with hardened washers. Anti - noise spring washers on the rotor side prevent noise when cold, allow for heat expansion, and eliminate rattle. The float also helps the rotor self - center between the pads. When it's time to replace the rotor rings, they're available separately with new hardware, and you can reuse the Girodisc hats.

Using these GiroDisc rear brake rotors is easy. Just install them as a direct replacement for your factory rotors on your 2018 - 2021 Subaru STI. Remember, you'll need to trim your rear brake pads for proper clearance. When driving, you'll notice quicker acceleration and better suspension response due to the reduced weight. As for maintenance, keep an eye on the rotor rings. If they wear out, you can replace them separately with new hardware while reusing the hats. Also, the cadmium - plated drive pins offer good corrosion resistance, but it's still a good idea to clean your brakes regularly to keep them in top shape. When the rotors are cold, you might be worried about the noise, but the anti - noise spring washers are there to take care of that. Enjoy a smooth and efficient braking experience with these rotors.