DBA 42657S 4000 T3 Rear Brake Rotor for 04-14 Subaru Impreza WRX STI

Vehicle Fitment

• 2004-2014 Subaru Impreza WRX STI (Rear, AWD, 5x100 mm)

Features

• Direct-replacement DBA 4000 Series T3 slotted rear brake rotor
• Tri-symmetrical T3 slot pattern for improved pad bite and gas evacuation
• Kangaroo Paw ventilation system increases cooling efficiency
• XG-150 high carbon alloyed iron for strength and thermal resistance
• Thermal Stability Profiling (TSP) improves durability under heat cycles
• Painted non-friction areas resist corrosion
• Universal uni-directional slot design - no left/right distinction
• Vented construction to reduce brake fade under demanding use

Specifications

• Position: Rear axle
• Rotor Type: Vented slotted (T3 pattern)
• Outer Diameter: 316 mm
• Nominal Thickness: 20 mm
• Minimum Thickness: 18 mm
• Centering Bore: 58 mm
• Stud/Lug Pattern: 5x100 mm
• Material: XG-150 high carbon alloyed iron

Included Components

• 1x DBA 42657S 4000 Series T3 Slotted Rear Brake Rotor

Product Description

The **DBA 42657S 4000 Series T3 Rear Brake Rotor** is engineered as a direct replacement performance rotor for the rear brakes of the Subaru Impreza WRX STI from 2004 through 2014. Featuring DBA's advanced T3 tri-symmetrical slot pattern and patented Kangaroo Paw internal ventilation system, this rotor enhances brake pad engagement and promotes effective evacuation of heat, dust, and gases for consistent braking performance under street and spirited driving conditions.

Constructed from premium **XG-150 high carbon alloyed iron** and processed with Thermal Stability Profiling (TSP) to reduce internal stress and warping, the DBA 42657S provides strong thermal resilience and extended service life compared with standard OEM rotors. Its uni-directional slot design allows installation without left/right distinction, and the vented construction helps reduce brake fade during repeated heavy braking. Ideal for WRX STI drivers seeking improved stopping power, heat management, and pedal feel over stock components.