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$20.85The Story
Rear Brake Pads for Subaru WRX and WRX STI
R1 Concepts R1 Optimum OE Pads part number 2551-2118-00 are rear disc brake pads for select Subaru performance applications. This set is listed for the rear position on 2024-2025 Subaru WRX with Brembo Performance Braking System and 2018-2021 Subaru WRX STI.
Key Features
- Disc brake pad set for the rear axle
- R1 Optimum OE Pads product line
- Direct fitment for select Subaru WRX and Subaru WRX STI rear applications
- Part number 2551-2118-00 for ordering and reference
- Built for vehicles equipped with the Brembo Performance Braking System where specified
Product Details
The R1 Optimum OE Pads line focuses on OE-style brake pad replacement for everyday drivability and consistent rear braking performance. This rear brake pad set is cataloged for 2024-2025 Subaru WRX rear applications with the Brembo Performance Braking System and for 2018-2021 Subaru WRX STI rear applications. If you are searching for rear brake pads for Subaru WRX STI or rear brake pads for Subaru WRX Brembo-equipped models, part number 2551-2118-00 matches the listed fitment.
Compatible With: 2024-2025 Subaru WRX, rear; 2018-2021 Subaru WRX STI, rear. The fitment data identifies this as a rear disc brake pad set for those specific model years and brake configurations.
Common Reasons for Replacement
- Rear brake pad wear reaching service limits
- Squealing, grinding, or uneven pad contact
- Reduced braking response from worn friction material
- Brake dust buildup from aging pads
- Maintenance on a Subaru WRX or Subaru WRX STI rear brake service interval
Installation Notes
Verify rear axle fitment, model year, and brake system configuration before installation. This application is listed for the rear position only, and 2024-2025 WRX coverage specifies the Brembo Performance Braking System. Inspect rotors, caliper condition, and pad hardware wear during service, and follow the vehicle manufacturer’s brake service procedure.
Quality Assurance
R1 Concepts identifies this part as part of the R1 Optimum OE Pads line, an OE-style brake pad offering for listed Subaru rear applications. Part number 2551-2118-00 should be matched to the exact vehicle fitment shown above before purchase.
Description
Rear Brake Pads for Subaru WRX and WRX STI
R1 Concepts R1 Optimum OE Pads part number 2551-2118-00 are rear disc brake pads for select Subaru performance applications. This set is listed for the rear position on 2024-2025 Subaru WRX with Brembo Performance Braking System and 2018-2021 Subaru WRX STI.
Key Features
- Disc brake pad set for the rear axle
- R1 Optimum OE Pads product line
- Direct fitment for select Subaru WRX and Subaru WRX STI rear applications
- Part number 2551-2118-00 for ordering and reference
- Built for vehicles equipped with the Brembo Performance Braking System where specified
Product Details
The R1 Optimum OE Pads line focuses on OE-style brake pad replacement for everyday drivability and consistent rear braking performance. This rear brake pad set is cataloged for 2024-2025 Subaru WRX rear applications with the Brembo Performance Braking System and for 2018-2021 Subaru WRX STI rear applications. If you are searching for rear brake pads for Subaru WRX STI or rear brake pads for Subaru WRX Brembo-equipped models, part number 2551-2118-00 matches the listed fitment.
Compatible With: 2024-2025 Subaru WRX, rear; 2018-2021 Subaru WRX STI, rear. The fitment data identifies this as a rear disc brake pad set for those specific model years and brake configurations.
Common Reasons for Replacement
- Rear brake pad wear reaching service limits
- Squealing, grinding, or uneven pad contact
- Reduced braking response from worn friction material
- Brake dust buildup from aging pads
- Maintenance on a Subaru WRX or Subaru WRX STI rear brake service interval
Installation Notes
Verify rear axle fitment, model year, and brake system configuration before installation. This application is listed for the rear position only, and 2024-2025 WRX coverage specifies the Brembo Performance Braking System. Inspect rotors, caliper condition, and pad hardware wear during service, and follow the vehicle manufacturer’s brake service procedure.
Quality Assurance
R1 Concepts identifies this part as part of the R1 Optimum OE Pads line, an OE-style brake pad offering for listed Subaru rear applications. Part number 2551-2118-00 should be matched to the exact vehicle fitment shown above before purchase.












