Materials are properly distributed for maximum strength, lower inertia, good heat tolerance and durability. Fits 2000 - 2003 Honda S2000 Base Convertible 2-Door (2.0L 4cyl DOHC; F20C1). Fits 2004 - 2009 Honda S2000 Base Convertible 2-Door (2.2L 4cyl DOHC; F22C1).