During my build, I swapped out the stock lower control arms for the newer 2014 lower control arms. On the parts list, it was the only part number they had...so the most current but probably not the "Nismo".
The talk was how the upgraded suspension geometry of the newer cars helped the GTR on initial turn in and feel more stable on turns at the track.
Also if you look at the CBA LCA vs the newer LCA, it moves the mounting point of the shock farther to the wheels side.
One of the Jotech guys is a pro level RC racer that sets up an builds his own cars. He seemed to have a VAST understanding of suspension geometry and set up.
He referred me to a book that you can download that talks about the suspension and changes in an easy way (attached).
Anyways, I plan to report back in this thread after Icarus and I drive COTA, but last time at MSR the car felt AWESOME on turn in and on long sweepers. It just felt super stable and neutral. It was amazing! I was really worried I messed up the set up of the car with all the changes and the wing but it's been perfect so far!
I did change other aspects of the suspension with the aftermarket control arms, UCA, etc. plus wing and running more camber so that might muddy this impression.
In regards to the camber, it looked like I wasn't using the outside of the tires so plan to go back to my TSM alignment for COTA and will report back.