Rotor Style: Drilled & Slotted. - Drilled and slotted rotor style enhances heat dissipation and improves braking efficiency. For Chevrolet Cobalt 2005-2008 L4 2.2L. For Saturn Ion 2003. - Ensure compatibility with your vehicle model before purchasing (fits for 2005-2010 Chevrolet Cobalt L4 2.2L, 2004-2007 Saturn Ion L4 2.2L, and all engines of 2003 Saturn Ion).