This Item Fit For: 2006-2013 Chevrolet Impala(NO Police or Taxi Models) 2006-2007 Chevrolet Monte Carlo(NO Police or Taxi Models) Benefits & Advantages: 1.Slots reduce stopping distances in wet weather. 2.Slots help to increase pad bite and improve air circulation. 3.Slots create an escape route for debris, dust, gases, and water. 4.Slots clean and de-glaze pad surface for optimum pad coefficient of friction. Quantity of Kit: 2 Disc Brake Rortors and 4 Brake Ceramic Pads .