If you really like the OEM setup why not just buy the same thing again. ie both DMF and OEM organic clutch. it will still be cheaper getting it from the states.
Using braided clutch line will make the clutch more direct/responsive as there is no slack in the system. This is what we perceive as improved feel but it will change ever so slightly that OEM character you are looking for though not as much as going with a HD clutch or SMF.
The same caution for the nismo roller bearing. It would likely increase noise within the system as I suspect it did on mine.
I have a JWT HD +500lbft rated clutch with SMF, CZP braided lines, motul RBF 660, Nismo roller bearing, chromoly pivot ball and while it can handle everything I've thrown at it in the last 2.5yrs including being supercharged, it is evil!
The rattle/ chatter is louder than similar setups I've heard (excluding the roller bearing so not sure if this is the cause). It's also very grabby and there's only a smaller engagement window which if you miss stalls the car or results in terrible judder and bounce. I'm used to it so not a problem except in reverse sometimes. Trust me I'm hardcore but I really don't like this about my zed and I've been trying hard to kill this clutch so I can go with a multi disc setup like exedy, OS Gikken or Carbonetics but it doesn't even want to die.
I have considered the willwood master cylinder upgrade setup and will do this when swapping engines but purely to make bleeding the clutch easier and secondarily to further improve feel.
Doing this together with the Zspeed CSC upgrade should beef up your clutch hydraulic system and improve engagement and feel without adding noise as the OEM CSC is known to fail frequently.
https://conceptzperformance.com/Cart/description.php?II=4592
https://conceptzperformance.com/Cart/description.php?II=8843
But as already said, since you have so many concerns, you should replace everything like for like OEM and you can go with the stage 1 clutch for a bit more longevity. It will stiffen the pedal presure a bit but for me it's a good thing.
- OEM or stg 1 organic clutch(exedy, JWT, ACT etc any will work.
- OEM DMF
- OEM throwout bearing
- SS clutch line. (Any branded one is good except eBay knockoffs)
- OEM MS or willwood upgrade
- OEM CSC or Zspeed upgrade.
Just remember that you are asking people's opinion on a very subjective matter so be prepared for a varied response and the only thing you can do is to have a drive in as many setups if possible or minimise the risk by making the smallest amount of changes. Nissan has already done the leg work for a GT cruiser.
BTW there is some slight chatter/rattle in the OEM setup :wink:
Hard to hear when driving but if you are stood out dude its there.ðŸ‘