The Ironman Unsprung clutch kit with lightened flywheel from Action Clutch is a track-focused option for Honda Civic Si (2002–2005) 2.0L (K20A3) applications. It uses American Sintered Iron friction and a dual clamp-load heavy-duty pressure plate to provide aggressive on/off engagement and around 250% more holding capacity than factory. Light engagement noise or gear rattle may occur; this kit is intended for race use and is thoroughly quality checked.
Action Clutch 02-05 Honda Civic Si 2.0L (K20A3) Ironman Unsprung Clutch Kit w/Lightened Flywheel