<p>Slots provide gas and water dissipation<br>Slots help to increase pad bite and improve air circulation<br>Drilled Holes and Slots create an escape route for debris, dust, gases, and water<br>Slots clean and de-glaze pad surface for optimum pad coefficient of friction<br>Drilled rotors improve the appearance of your wheels and provide reduced rotor weight<br>2-Piece rotors offer great weight savings and provide rapid heat dissipation compared to 1-piece rotors<br>Vented type of rotors offer much faster heat dissipation</p>