The CCI twin disc provides the most economical racing clutch for the active sport compact enthusiast. This ceramic twin disc comes with a 4140 forged steel flywheel and a 6061 T6 aluminum cover complimented with a 6150 steel diaphragm. These units are rated to hold 500 to 1200hp (depending on application).2002-2008 Acura RSX / 2002-2009 Honda Civic SI 184mm Rigid Twin Disc Clutch Kit. Old P/N 4-8037-C.