Clutch Masters 12-13 Honda Civic Si 2.4L 6spd FX400 High Rev 6-Puck Ceramic Clutch Kit w/ Steel FW08240 HRC6 SK Description 170% Increase in Holding Capacity RACE STREET Kits beginning with 08240 for the Acura Honda K24 require a Hondata Flashpro or other engine management system to be used since the flywheel's weight is lighter than OEM and will cause a check engine light to occur if not properly tuned. If you DO NOT want to use an aftermarket engine management system, then you must use kit number that begins with 08320. Kit number 08320 is to