Competition Clutch - Nissan 240sx / 280z 250MM "White Bunny" Upgrade Kit Competition Clutch now offers a clutch and flywheel upgrade kit for the 240sx, 280z/zx and K24E/DE motors. The clutch assembly uses an OE style 250mm pressure plate, with an OE style disc, pilot bushing and an alignment tool. An option to upgrade to a six puck disc is available which will hold more power, at an additional cost. The OE style clutch assembly/disc is proven to hold 400 HP, and the six puck is rated to hold 500 HP. The flywheel weighs 18 lbs. and the entire clutch and flywheel assembly weighs in at approximately 35 lbs. Full Face Disk