Two-Piece Replacement Rotor Rings
Restore the performance of your StopTech big brake kit with Two-Piece Replacement Rotor Rings. Designed as direct replacements for worn rotor rings, these high-quality discs allow you to maintain peak braking performance without replacing the entire two-piece rotor assembly.
Key Features
- Designed for Two-piece rotor assemblies
- Internal vane technology for superior cooling
- High-carbon metallurgy for strength and durability
- Ideal for performance street and track applications
Rotor Options
Important: This ONLY comes with the rotor rings. The drive pin hardware is sold as an add-on. Add on two sets of hardware for a set of two rotors.
- 328x28mm Slotted (Passenger Side Only) β 31.326.1102.99
- 338x32mm Slotted β 30.J55.1111 / 30.J55.1112
- 345x28mm Curved Slotted (Comes with Drive Pin Hardware)
- 355x32mm Slotted (Passenger Side Only) β 31.737.1102.99
- 355x32mm Slotted β APP.737.1101L / APP.737.1101R
- 355x35mm Drilled β 31.747.1201.99 / 31.747.1202.99
- 355x35mm Slotted Race (Driver Side Only) β 31.747.1101.87
- 380x32mm Slotted β 31.836.1101.99 / 31.836.1102.99
- 380x35mm Slotted (Driver Side Only) β 31.846.1101.99
- 380x35mm Slotted Race β 31.846.1101.87 / 31.846.1102.87
- 380x35mm Slotted Zinc Coated (Passenger Side Only) β 31.846.1106.99
Why Choose SOS Performance?
- Proven Quality: Every kit is designed, tested, and backed by years of hands-on performance experience.
- Performance You Can Trust: From daily driving to heavy-duty use, our components deliver reliability and confidence.
- Support That Cares: Weβre a family-owned business dedicated to helping you get the right setup for your vehicle.
- Fast Shipping: Most orders ship same or next day, so you can get on the road quicker.


