DBA 53050BLKS-10 5000 Series Front Slotted Brake Rotor for 2017+ Subaru WRX STI

Sharing all the benefits of the 4000 Series, DBA's 5000 Series rotors are a composite 2 piece direct replacement brake rotor. DBA uses only the highest quality materials to ensure optimal performance under the most strenuous circumstances, combining high carbon cast-iron rings with aerospace grade aluminum hats (T6061-T6), held together with National Aerospace Standards (NAS) bolts and crimp nuts. The 5000 Series share all of the performance technology featured in the 4000 Series, with the added benefits of further weight reduction and improved heat management via aluminum hats. The use of aerospace grade aluminum hats reduces the unsprung weight of the brake rotors, while allowing for uniform radial disc expansion through the cast iron rings, and reduced heat transfer from disc to hub via the aluminum hats. DBA offers both complete assemblies for first time replacement (hats and flat discs bolted together) along with replacement hats and flat disc rotors (rings). This allows drivers to re-use their DBA 5000 Series hats with DBA replacement flat discs (rings). DBA recommends the 5000 Series for high performance street vehicles, track day and club racing and rally applications. Sharing all the benefits of the 4000 Series, DBA's 5000 Series rotors are a composite 2 piece direct replacement brake rotor. DBA uses only the highest quality materials to ensure optimal performance under the most strenuous circumstances. DBA's 5000 Series rotors feature: Aluminium hats (T6061-T6), National Aerospace Standard (NAS) bolts and crimp nuts, Replacement disc rotors available, XG-150 High Carbon Alloyed Iron, TSP (Thermal Stability Profiling), Thermo-graphic Paint markings (THGP), Direct replacement suitability, Moisture proof corrosion protection packaging

The DBA 53050BLKS-10 5000 Series front slotted brake rotor is a high-performance, two-piece direct-replacement brake rotor designed for the 2017 and newer Subaru WRX STI. It combines DBA’s high-carbon XG-150 cast-iron disc ring with a T6061-T6 aerospace-grade aluminum hat to improve heat management, reduce unsprung weight, and support consistent braking performance during demanding street, track-day, club-racing, and rally use.

Built with technology shared across DBA’s 4000 Series, this 5000 Series rotor uses Thermal Stability Profiling (TSP) to help manage thermal stress and promote uniform disc expansion. Thermo-graphic paint markings provide a visual reference for monitoring operating temperatures, while the slotted friction surface helps refresh the pad contact area and manage brake debris. Aerospace-standard bolts and crimp nuts secure the disc ring and hat for dependable two-piece rotor assembly performance.

The aluminum hat helps limit heat transfer from the disc to the wheel hub, while the high-carbon iron ring is engineered to maintain braking stability under repeated heavy use. DBA supplies the 53050BLKS-10 as a complete rotor assembly for first-time installation, and replacement disc rings are available separately for future servicing with compatible DBA 5000 Series hats. Corrosion-protection packaging helps preserve the rotor during handling and storage.

Key Product Specifications and Technical Data

• Brand: DBA
• Part Number: 53050BLKS-10
• Series: 5000 Series
• Rotor Type: Two-piece composite direct-replacement brake rotor
• Position: Front axle
• Disc Material: XG-150 high-carbon alloyed cast iron
• Hat Material: T6061-T6 aerospace-grade aluminum
• Design Features: Slotted disc, TSP thermal profiling, THGP thermo-graphic markings, NAS bolts, and crimp nuts

What's Included

• One DBA 53050BLKS-10 front slotted 5000 Series brake rotor assembly

Fitment

Fits select 2017 and newer Subaru WRX STI applications, including the listed 2018 and 2021 Subaru WRX fitments. Confirm vehicle year, model, trim, axle position, and original brake configuration before ordering.

Features:

• Two-piece composite construction combines a high-carbon cast-iron disc ring with a T6061-T6 aerospace-grade aluminum hat.
• Slotted friction surface supports pad contact maintenance and effective management of brake debris during demanding driving.
• Thermal Stability Profiling and uniform radial expansion help promote consistent braking performance under repeated heat cycles.
• Reduced unsprung weight and lower heat transfer to the wheel hub support improved handling response and brake-system durability.

Fitments:
2018 Subaru WRX Base
2018 Subaru WRX Limited
2018 Subaru WRX Premium
2021 Subaru WRX Base
2021 Subaru WRX Limited
2021 Subaru WRX Premium

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1