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Caliper Subaru V2 Rear WRX 2 Piston Caliper Upgrade
DBA T3 4000 Series Slotted Rotor - Single Rotor
Fitment: Rear
Fixed UPS Ground shipping!

DBA 4000 Series T3 Slotted Rotor is designed for extreme stopping power and complements the looks of any performance vehicle. These are direct OEM replacement rotors and bolt on with no mechanical changes needed.

DBA brake rotors are designed and built for performance and durability.


- Patented pillar vane venting increases heat dissipation
- XG150 High Carbon Alloyed Iron increases thermal capacity of the rotor
- Proprietary TSP heat treament process strengthens iron for resistance to cracking and warping
- Slotted friction surface increases pad bite and minimizes glazing
- Thermo-Graphic paint markings for effective heat monitoring

After decades of design and development with race teams around the world, Disc Brakes Australia developed a proprietary cast iron (XG-150) for use in all of its premium performance disc brake rotors. This specially formulated iron is rich in carbon and alloyed to produce excellent thermal characteristics, which is a key factor in the production of the casting, combined with patented 'Kangaroo Paw' ventilation design. With its supersaturated solution of carbon in an iron matrix, the excess carbon precipitates out in the form of graphite flakes. The morphology of these graphite flakes provide excellent thermal properties, increasing the thermal shock resistance and allowing it to survive rapid thermal cycling with core-heat levels of approximately 1290ºF and above.

Using a series of 144 diamond and teardrop patterned pillars (or columns) instead of conventional straight cooling vanes, the design increases cooling efficiency by up to 20% when compared with most other conventional ventilated disc rotors. As well as providing cooler conditions, the DBA's pillar vane system also provides additional support to the friction face. This enables the rotor to maintain the fine tolerances over the life of the rotor better than a straight vane design, which can “balloon” and swell between the vanes when operating at high temperatures. The pillars are evenly spread across the disc face and make the rotor stronger, more stable and more consistent in operation.

Slotting limits the possibility of glazing your brake pads and allows better 'pad-bite' under extreme braking conditions. Slotting constantly improves the disc pad friction face by wiping away the impurities and resins in the friction material.