Originally Posted by MicVelo

I would NOT use OEM slave cylinder as replacement. Same thing will happen.

The two "upgraded" options available are both by Z Speed Performance:

- HD CSC (concentric slave cylinder) - same installation as OEM unit and has been the tried and true upgrade solution for HR/VHR (all 2007+) equipped Zs.

I just installed this (along with a new clutch, both of which I had sitting in my garage for my Nismo's eventual clutch upgrade) on my son's HR and all is good. Along with a new master, car runs great.

Found here: http://www.zspeedperformance.com/ZSp...SC-zsp2006.htm

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- A newer option from them is the ZSP CMAK (clutch movement alteration kit) which essentially externalizes all the hydraulic pieces and uses time honored clutch fork and standard T/O bearing. Think of this as a "backdate" or "conversion" to the set up on a DE engine. I've no personal opinion on this as I've not used but reviews have been encouraging.

http://www.zspeedperformance.com/ZSp...e-ZSP-CMAK.htm

Either way, the curse of the dropped pedal should disappear with these solutions.