SP Peformance Cross Drilled Rotors - FrontSP Performance Cross Drilled Brake Rotors SP Performance Cross Drilled Rotors have taken it to the next level by eliminating the sharp edges on our Cross Drilled holes. By doing this, it greatly reduces the chance of cracking and lowers the rotor temperature by moving the air and brake dust from the disc brake surface. By keeping the surface temperature down, this nearly eliminates heat checking and warping. The Cross Drilled holes also reduce the