Cross Drilled Discs offer an enhanced initial bite (more responsive, especially in wet weather) and greater heat dissipation (reduction in heat induced fade - "brake fade")as compared to O.E.M. They may also last longer than O.E.M. rotors (depending on your braking style), with 40% Better Cooling, 20% better stopping, improved wet braking, reduces rotor warpage, less brake fade and longer life.