Want advise on some goodies

[jaxchuck]

Okay, after only 3 months in my 2012 Nismo, I have some money burning a hole in my pocket, but want feedback before I pull the trigger.

TWM short shifter, leather boot, Phantom hybrid knob, grease (about $500)

While I have the shop doing this install, I will get them to change trans and diff oils.

From reading several threads, this seems to be best choice:

Red Line MT-85 75W85 GL-4 for transmission
Red Line 75W90 GL-5 Gear Oil for differential

I haven't crawled under the car yet, but am also thinking about a NISMO Differential Cover if it isn't already in place ($140)

Finally, next month...

Racing Brake 2 piece rotors, ET500 pads, Motul RBF 600 fluid and ss lines ($2500).

First cool weather track day Oct 19 at Roebling

[MJB]

I have the same rotors and pads. Really high quality stuff. Great if you are going to track your z. I use the same fluids you mentioned. Can't go wrong with Redline. I wouldn't get the finned diff cover. Really, how much is it going to lower the temp of your diff oil? If you plan on tracking, you may want to invest in a oil cooler for the diff. I believe GTM sales a nice setup.
No experience with a short shifter however it's a pretty popular upgrade.