DBA DBA43050XS-10 4000 Series XS Drilled/Slotted Front Rotor for 18-21 WRX STI

Vehicle Fitment

• 2018-2021 Subaru WRX STI (Front, Brembo Spec R 6-piston calipers)
• 2024-2025 Subaru WRX TR/TS (Front, Brembo compatible)

Features

• DBA 4000 Series XS high-performance drilled/slotted front rotor
• Cross drilled and precision slots for enhanced heat and gas evacuation
• Non-directional design - usable left/right
• Kangaroo Paw ventilation improves cooling efficiency under stress
• High carbon alloyed iron construction for durability and thermal resistance
• Thermal Stability Profiling (TSP) reduces internal stresses
• Painted non-friction areas help resist corrosion
• Gold finish rotor hub for elevated aesthetics

Specifications

• Part Number: DBA43050XS-10
• Series: 4000 Series XS Drill & Slot Performance Rotor
• Position: Front axle
• Outer Diameter: 340 mm
• Nominal Thickness: 30 mm; Minimum Thickness: 28 mm
• Overall Height: 53 mm
• Centering Diameter: 58.02 mm; 10 bolt holes
• Surface: Cross drilled and precision slotted, vented
• Material: High carbon alloyed iron with TSP

Included Components

• 1x DBA 4000 Series XS Drilled/Slotted Front Brake Rotor (DBA43050XS-10)

Product Description

The DBA DBA43050XS-10 4000 Series XS Gold Front Brake Rotor is a premium drilled and slotted performance rotor engineered for 2018-2021 Subaru WRX STI models equipped with Brembo Spec R 6-piston front brake calipers, as well as compatible high-performance WRX TR/TS applications. Combining cross drilled holes with precision slots and advanced ventilation, this rotor aids in expelling friction gases, dust, and heat more efficiently than standard or solely slotted rotors, helping maintain strong brake bite and reducing the risk of fade during spirited driving or occasional track use.

Constructed from high carbon alloyed iron and treated with Thermal Stability Profiling, the DBA43050XS-10 resists heat-induced distortion and offers enhanced durability over stock rotors. The attractive gold finish on the rotor hub adds visual appeal, and the design ensures direct replacement fitment into compatible Brembo front brake systems. Sold individually, this rotor is ideal for performance-oriented drivers looking for improved cooling performance and braking response.