DBA 18-19 Subaru STI VAB T3 5000 Series 2-Piece Slotted Front Brake Rotor (Hat Not Included)

DBA is known for making serious brake components, and their 5000 Series rotors are a prime example. If you're pushing your 2018 or 2021 Subaru WRX hard, whether on the street, track days, or club racing, these 2-piece rotors are built to handle the heat and stress. They're a direct replacement for your stock front rotors, but with a significant upgrade in performance and technology.

What sets the 5000 Series apart is its two-piece construction. It combines a high-carbon cast-iron friction ring with an aerospace-grade T6061-T6 aluminum hat. This design does a couple of important things. First, the aluminum hat is much lighter than a traditional iron hat, which reduces unsprung weight, helping your suspension work better. Second, the aluminum hat helps manage heat transfer from the rotor to the hub, and it allows the cast-iron ring to expand evenly as it heats up. This helps prevent warping and keeps your braking consistent. DBA also uses NAS bolts and crimp nuts to hold it all together, ensuring a solid connection.

These rotors feature DBA's T3 slot pattern. The T3 slots are designed to help sweep away dust and gas that can build up between the pad and rotor, maintaining a strong, consistent bite. You can also buy replacement iron rings separately down the line, allowing you to reuse the aluminum hat and save money on future upgrades. This makes them a solid option for drivers who demand more from their braking system.