Felpro Cylinder Head Bolt --. 2002-2006 Cooper (submodel: Base, S). 2007-2008 Cooper (submodel: Base, S). Quantity Sold: Set of 8. Solid, top-quality construction for extended protection. Prop 65 Warning: WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm.