Stage 4 Yonaka Full Clutch Kit with flywheel for my eg. I am thinking of buying it for my few bolt ons b20z non vtec or using it for my basic bolt ons B18C1. Should I? It's for a steal price of $80 and I be checking if it has too much wear I won't buy it.

My main concern would be would I lose any performance gains because my motor is stock internals and stock block/head and only a few bolt ons.

Possibly a few head upgrades but that won't be until a year or 2 down the road.