What is the main benefit of the slotted design on these rotors?

The angled slots on these EBC Ultimax rotors help pull in cool air for improved brake cooling. They also work to clear away brake dust and debris, which helps maintain maximum pad grip and can increase pad longevity.

Are these rotors a direct replacement for my stock rear rotors?

Yes, these are designed as a direct fit for the rear of your 2018-2021 Subaru WRX STI with Brembo calipers. They are vented rotors with a 5-bolt pattern, 326mm diameter, and 20mm thickness, matching OE specifications.

Do these rotors come with any hardware for installation?

This product listing is for the EBC RK2123XD rear brake rotors only. Installation hardware, such as new lug nuts or brake pad hardware kits, is typically sold separately.

EBC 18-21 Subaru WRX STI 2.5T (w/Brembo Calipers) Rear RK Premium Rotors

Specifications

Brand: EBC
Part #: RK2123XD
UPC: 889668257823

EBC 18-21 Subaru WRX STI 2.5T (w/Brembo Calipers) Rear RK Premium Rotors

Name: EBC 18-21 Subaru WRX STI 2.5T (w/Brembo Calipers) Rear RK Premium Rotors
Brand: EBC
Price: 259.36 USD
Availability: InStock

$259.36

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Fits 2018-2021 Subaru WRX STI. EBC rear slotted brake rotors help keep brakes cool and clear dust for maximum grip.

Key Features

Fits 2018-2021 Subaru WRX STI with Brembo calipers.
Rear vented rotor set with a 326mm diameter and 20mm thickness.
Progressively angled slots help keep brakes cool and clear dust.
Slotted design offers quiet operation without excessive air noise.
Helps maintain maximum pad grip and increases pad longevity.
Features a 5-bolt hole pattern and 58mm center hole diameter.

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Fits this vehicle

Subaru WRX STI 2018-2021

Product Details

The progressively angled slots on these EBC Ultimax rotors are designed to give you the benefits of slotted rotors without the usual air noise. This means you get improved brake cooling and dust clearing, which helps maintain maximum pad grip and can even increase pad longevity. They are a vented rotor set, meaning they have internal vanes to help dissipate heat, crucial for keeping your brakes performing their best during spirited driving or heavy use.

These rear rotors are specifically made for the 2018-2021 Subaru WRX STI models equipped with Brembo calipers. They measure 326mm in diameter and are 20mm thick, with a 63mm height and a 58mm center hole diameter. The 5-bolt pattern ensures a direct fit for your vehicle. The slotted design helps pull in cool air, keeping your brakes cooler, and also works to clear away brake dust and debris, ensuring consistent performance and helping your pads last longer.