DBA DBA43050-10 4000 Series HD Front Brake Rotor for 2018-2021 Subaru WRX STI

Vehicle Fitment

• 2018-2021 Subaru WRX STI (Front, Brembo 6-piston calipers, performance applications)

Features

• DBA 4000 Series HD high carbon alloyed brake rotor
• OE-style smooth rotor surface for balanced performance and appearance
• Kangaroo Paw ventilation with 144 internal cooling pillars
• Thermal Stability Profiling (TSP) enhances strength and durability
• High carbon alloyed iron for improved heat resistance and longevity
• Painted non-friction areas reduce corrosion
• Direct replacement rotor design for performance upgrade use
• Compatible with 10-lug patterns for select performance brake systems

Specifications

• Part Number: DBA43050-10
• Series: 4000 Series HD Front Brake Rotor
• Position: Front axle
• Outer Diameter: 340 mm
• Nominal Thickness: 30 mm; Minimum Thickness: 28 mm
• Height: 53 mm
• Centering Diameter: ~58.02 mm
• Vent Type: Kangaroo Paw 144 vents for improved cooling
• Surface: Smooth/Plain for OE-style performance
• Material: High carbon alloyed iron with TSP

Included Components

• 1x DBA 4000 Series HD Front Brake Rotor (DBA43050-10)

Product Description

The DBA DBA43050-10 4000 Series HD Front Brake Rotor is a performance-oriented direct replacement rotor designed to enhance braking capability over standard OEM rotors. Crafted from high carbon alloyed iron and treated with Thermal Stability Profiling (TSP), this rotor handles the increased stress and heat of spirited driving or performance use with improved durability and resistance to thermal deformation.

Featuring a smooth OE-style surface and advanced Kangaroo Paw ventilation with 144 internal cooling pillars, the DBA43050-10 offers better heat dissipation and maintains more consistent stopping power over extended braking events. Its design makes it well-suited for upgraded performance applications such as the Subaru WRX STI equipped with Brembo 6-piston front calipers. Installation is straightforward as a front direct replacement rotor when matched to compatible hub, caliper, and pad combinations.