DBA's 5000 Series T3 two-piece slotted front rotor for 2018–2019 Subaru STI VAB is a direct-replacement composite rotor using high-carbon cast-iron rings with aerospace-grade T6061-T6 aluminum hats fastened with NAS-standard hardware. The design reduces unsprung mass, improves heat management and features DBA's T3 bi-directional slot pattern for enhanced thermal control and braking performance in high-demand street and track applications.
DBA 18-19 Subaru STI VAB T3 5000 Series 2-Piece Slotted Front Brake Rotor (Hat Not Included)