Carbotech Rear Brake Pads - 2004-2017 Subaru WRX STI & 2017-2020 BRZ (Brembo) - CT961
Carbotech Rear Brake Pads - 2004-2017 Subaru WRX STI & 2017-2020 BRZ (Brembo) - CT961 - 1521 - Street is backordered and will ship as soon as it is back in stock.
Shipping & Returns
Shipping & Returns
Shipping is calculated at checkout. Some oversized products require additional freight shipping. See our Shipping and Return policies for complete details.
Will it fit my Subaru?
Listed for:
Check the fitment notes in the description. Still not sure? Send us your year, model and trim and we'll confirm before you order.
Email sales@subishop.com or start a live chat.
Shop with confidence
- ✔ Selling Subaru performance parts since 2001
- ✔ Secure checkout through Shopify
- ✔ Real people in Howell, MI. Email or live chat anytime.
- ✔ Same-day shipping on in-stock orders placed by 1pm Eastern, Mon–Fri. Shipping policy
- ✔ 30-day returns on new, uninstalled parts, 25% restocking fee (email us first for a return number). Return policy
More from Carbotech
Description
Description
Carbotech Rear Brake Pads for the 2004-2017 Subaru WRX STI & 2017-2020 BRZ (Brembo). Pick the compound that fits how you drive. 1521 is the street pad. AX6, XP and RP2 are for autocross, track and racing, and Carbotech says they are not for street use.
Fitment at a glance
- Position: Rear axle
- Fits: 2004-2017 Subaru WRX STI (GD/GR/VA) with Brembo rear calipers and more (see below)
- Part number: CT961, plus the compound code (for example CT961-1521)
Fitment
- 2004-2017 Subaru WRX STI (GD/GR/VA) with Brembo rear calipers
- 2017-2020 Subaru BRZ (ZC6) with Brembo rear calipers (Performance Package and tS)
Note: For 2018-2021 STI rear pads, see CT18STiR.
Compounds
- 1521: Carbotech's high-performance street compound. Low dust, low noise, rotor friendly, good initial bite. Operating range ambient to 800°F. Carbotech says it is not recommended for any track use.
- AX6: made for autocross. High torque from 50°F to 1000°F+, strong bite at lower temperatures. Not for street use.
- XP8: Carbotech's first racing compound, 200°F to 1250°F+. High fade resistance and rotor friendly; good for track days. Not for street use.
- XP10: strong initial bite and high friction with fade resistance past 1475°F. Not for street use.
- XP12: more bite, torque and fade resistance than XP10, 250°F to 1850°F+. A little harder on rotors than XP10. Not for street use.
- XP20: very aggressive initial bite and linear torque, 275°F to 2000°F+. Not for street use.
- XP24: Carbotech's highest-bite, longest-wearing endurance compound, 400°F to 2000°F+. Not for street use.
- RP2: endurance racing compound with strong bite and good fade resistance, 250°F to 1450°F+. Not for street use.
Product details
- Brand: Carbotech
- Part numbers: 1521 CT961-1521; AX6 CT961-AX6; XP8 CT961-XP8; XP10 CT961-XP10; XP12 CT961-XP12; XP20 CT961-XP20; XP24 CT961-XP24; RP2 CT961-RP2
- Category: Brakes, Rotors & Pads / Brake Pads - Performance
The photo shows Carbotech pads in general. The shape of your pad will match your car's caliper.
Check the fitment list against your car before ordering. If you are not sure it fits, send us a message with your year and trim.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store your credit card details or have access to your credit card information.

