JWT has designed a new direct fit C.S.C. that addresses both issues with the O.E. cylinder by incorporating an all-aluminum piston / seal support featuring 2 full radial PTFE sleeve wipers dramatically reducing friction and clutch dust migration to the seal. The JWT C.S.C. is a direct fit replacement for the original C.S.C. using all of the original factory hydraulic lines and fittings with no modifications or additional hoses, simply install the same as a stock C.S.C.When replacing the concentric slave cylinder, we highly recommend replacing the master cylinder at the same time. If the Master is not replaced at the same time the CSC is replace, Warranty is VOID. Contaminants in the fluid often cause the masters to fail at or near the same time, and opening and re-bleeding the system tends to facilitate failure.