DBA DBA5654.1S 5000 Series T3 Front Slotted Rotor Ring for 04-21 Subaru WRX STI

Vehicle Fitment

• 2004-2021 Subaru Impreza WRX STI (Front axle, DBA 5000 Series two-piece rotors)

Features

• DBA 5000 Series T3 slotted front brake rotor replacement ring
• Tri-symmetrical T3 slot pattern increases pad bite and outgassing
• Designed to work with DBA 5000 Series two-piece rotor hats
• High carbon alloyed iron friction surface for improved heat capacity
• Symmetrical slot layout allows use on either left or right side
• Precision CNC-machined for consistent surface finish and braking feel
• Ideal for spirited street driving, rally, and occasional track use
• Thermal Stability Profiling (TSP) helps resist heat-related warp

Specifications

• Part Number: DBA5654.1S
• Series: 5000 Series T3
• Application: Front brake rotor ring (two-piece rotor system)
• Surface Type: Slotted (T3 pattern)
• Axle Position: Front
• Compatible Rotor Diameter: ~326 mm
• Material: High carbon alloyed iron
• Installation: Use with corresponding DBA rotor hat and NAS hardware

Included Components

• 1x DBA 5000 Series T3 front slotted rotor ring (DBA5654.1S)
• NAS bolts and crimp nuts (if included by supplier)

Product Description

The DBA DBA5654.1S 5000 Series T3 Front Slotted Rotor Ring is a high-performance replacement rotor friction surface engineered for Subaru Impreza WRX STI models from 2004 through 2021 equipped with DBA 5000 Series two-piece rotors. Featuring DBA's advanced tri-symmetrical T3 slot design, this rotor ring enhances brake pad bite and effectively evacuates brake dust and gases, leading to smoother, more consistent stopping performance under both street and competitive driving conditions. The high carbon alloyed iron construction combined with Thermal Stability Profiling (TSP) improves heat handling and resistance to warping during aggressive use.

Sold individually, the DBA5654.1S rotor ring is intended to be paired with the appropriate DBA 5000 Series rotor hat and NAS hardware (sold separately) for direct bolt-on replacement. Whether refreshing worn components or upgrading to a more responsive braking setup, this performance rotor ring is engineered to meet the demands of Subaru enthusiasts seeking improved thermal performance, braking feel, and durability over standard rotors.