T3 Slotted 2-Piece Brake Rotor

The DBA DBA5040BLKS is a premium 2-piece T3 slotted brake rotor, designed as a direct replacement for demanding driving conditions. Building upon the technology of the 4000 Series, the 5000 Series offers enhanced performance through a composite construction. It features high-carbon cast-iron friction rings paired with aerospace-grade T6061-T6 aluminum hats, secured by National Aerospace Standards (NAS) bolts and crimp nuts. The utilization of aluminum hats significantly reduces unsprung weight, contributing to better vehicle dynamics. Furthermore, these hats facilitate uniform radial expansion of the cast-iron rings and minimize heat transfer from the rotor to the hub. The T3 slotting pattern is engineered for a quiet and responsive braking feel, while the vented rotor design is crucial for dissipating heat generated during intense braking. DBA recommends the 5000 Series for a variety of performance applications, including high-performance street driving, track days, club racing, and rally events. The specified dimensions include a 296 mm outside diameter, 83 mm overall height, 28 mm nominal thickness, and 71.5 mm center hole diameter, with 5 lug holes. This rotor is specifically designed to fit the 2004 Pontiac GTO.