When running metal/floating pressure plate type clutches like OS Giken and ORC - the clutch engagement is very on-off. With the factory slave cylinder you get a mid stroke engagement and also a very sudden take up.
Installing a Nismo slave cylinder slows down the clutch fork operation as the piston volume is larger than OEM. Thus, you have less fork stroke, and also softer pedal feel. The result is a much more gradual engagement of the clutch and also lowers the engagement point of the clutch (ie clutch engages earlier). Combined with the Nismo braided clutch line - when installed you have the option of deleting the factory clutch damper hoop - replacing the outlet with a bleed bolt/nipple supplied in the kit (as shown in the photo).
I haven't experienced any more vibrations in the clutch pedal than normal since removing the damper hoop - however I am running a metal clutch with very short diaphragm springs which may play a role in transmitting vibrations to the pedal. I suspect a traditional clutch system (such as OEM or Nismo Sports clutch) would transmit more vibes but that is just hearsay. Bleeding the clutch is now much easier. The hoop used to trap a lot of air and I always had to raise the front of the vehicle up to bleed the clutch system but now I can leave it level and bleed it. Worthy upgrade - recommended.
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