DBA 42656S-10 4000 T3 Rear Brake Rotor for 2008-17 Subaru WRX STI/BRZ

Vehicle Fitment

• 2008-2017 Subaru WRX STI (Rear, AWD, 5x100 mm/5x114.3 mm)
• 2017 Subaru BRZ w/ Performance Package (Rear, RWD, 5x100 mm/5x114.3 mm)

Features

• Direct-replacement DBA 4000 Series T3 slotted rear brake rotor
• Tri-symmetrical slot design increases brake pad bite and gas evacuation
• Kangaroo Paw internal ventilation for enhanced heat dissipation
• XG-150 high carbon alloyed iron for strength and thermal resistance
• Thermal Stability Profiling (TSP) for reduced heat stress and longer life
• CBN machine-turned surface minimizes thickness variation
• Vented design helps reduce brake fade under heavy use
• Universal uni-directional slot pattern - no left/right distinction

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: Dual 5x100 mm & 5x114.3 mm
• Material: XG-150 high carbon alloyed iron

Included Components

• 1x DBA 42656S-10 4000 Series T3 Slotted Rear Brake Rotor

Product Description

The **DBA 42656S-10 4000 Series T3 Rear Brake Rotor** is a high-performance direct replacement rotor engineered for select Subaru performance applications such as the WRX STI and the BRZ with Performance Package. Featuring DBA's tri-symmetrical T3 slot pattern and patented Kangaroo Paw ventilation system, this rotor helps brake pads maintain stronger contact by effectively evacuating brake pad dust, gases, and heat - delivering more consistent stopping performance under street, spirited, or track conditions.

Constructed from premium XG-150 high carbon alloyed iron and treated with Thermal Stability Profiling (TSP), this rotor resists heat-induced stress and warping better than standard rotors for improved durability and consistent braking feel. Designed with dual bolt patterns (5x100 mm and 5x114.3 mm), the DBA 42656S-10 offers versatility across compatible Subaru rear hubs. Sold individually, it's ideal for owners seeking an upgrade that enhances thermal performance and brake response without modifying the factory braking system.