5000 Series XD Two-Piece Brake Rotor

The DBA 5000 Series XD brake rotor represents a significant upgrade over standard OE components, offering enhanced performance and durability for demanding driving conditions. As a two-piece, fully assembled unit, it integrates a premium cast iron friction ring with an aerospace-grade aluminum hat, which reduces unsprung weight and promotes uniform radial disc expansion. This XD finish not only provides superior cooling benefits compared to standard HD finishes but also enhances the sporty aesthetics of the braking system. Furthermore, the XD utilizes a mix of dimples and drilled holes for enhanced structural support over transitional cross-drilled techniques. DBA's rotors are cast from high-carbon alloyed iron and undergo Thermal Stability Profiling (TSP). This process allows the metallurgy to withstand increased stress and heat generated during intense braking applications. However, it is important to note that the XD rotors are not recommended for track use. This specific rotor, DBA53050BLKXD-10, is designed for the front axle and has an outside diameter of 340mm. It features 10 lug holes with a pitch circle diameter of 100mm & 114.3mm. The rotor's surface is cross-drilled and dimpled, and it is a vented type with R KP Vents for vane design. The nominal thickness is 30mm, with a discard thickness of 30mm and a minimum thickness of 28mm. The center hole diameter is 58.02mm, and the overall height is 53mm. This rotor is specifically listed as compatible with the 2018 Subaru WRX STI and the 2021 Subaru WRX STI. Fitment compatibility can vary greatly within a given model, and users are advised to consult specific vehicle details to ensure compatibility.