Subaru WRX STI Brake Rotor (1) - Rear - DBA 4000 Series Slotted (2017+). A direct-replacement, single-piece rotor built for enthusiasts who demand confident braking on the street and beyond.

DBA’s 4000 Series T3 design uses tri-symmetrical CNC slots to maintain pad contact, clear gases and dust, and promote a more consistent, quieter pedal feel. Cast from XG-150 high-carbon alloy and treated with Thermal Stability Profiling, it handles repeated heat cycles. The patented Kangaroo Paw pillar ventilation (144 pillars) increases surface area and cooling efficiency versus straight vane rotors. Thermo-graphic paint markings help you monitor peak disc temperatures, and the universal bi-directional slot layout avoids left/right confusion.

Features

• XG-150 high-carbon alloy with Thermal Stability Profiling (TSP)
• T3 bi-directional, tri-symmetrical slotted face
• Kangaroo Paw 144-pillar ventilation (up to 30% more surface area, ~20% better cooling vs. straight vane)
• Thermo-graphic paint heat monitoring (THGP)
• Moisture-resistant corrosion-protection packaging
• Direct-replacement rear rotor for 2017+ WRX STI

Have questions or need fitment guidance? Call us in Austin, TX at 512-982-9393 or in the Los Angeles, CA area at 562-981-6800. We offer installation and customization services at both locations. Considering multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov