Chassis Codes: E90 (Saloon), E91 (Touring), E92 (Coupe), E93 (Convertible). Years: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (Up to 2014 for E93). NAPA components are cold-coiled and shot-peened to increase surface density and fatigue life.
