Select Sport drilled & slotted brake rotors by StopTech are manufactured using CAD-CAM design on CNC machines for better braking performance. The rotor provides perfect balance and alignment for more consistent and smooth braking power over a variety of driving conditions, including panic stops. StopTech brake rotors are built lighter for less unsprung weight, ensuring better driving quality and handling. With G11H18 metallurgy, this rotor features improved durability, while its cross-drilled holes and slots quickly purge hot gases and debris, resulting in better heat dissipation and less brake fade under hard use.