I was under the impression it was organic, but i could be wrong.
It's this one https://www.gameonmotorsports.com.au/npc-nissan-skyline-r32-gts-t-push-type-gtr-r33gts
Rated to 300rwkw. Did 20k kms in my car, still heaps of meat on it. Has an Xtreme pressure plate with it. Decided to upgrade while I had the box off. Located in Geelong. $375.
Best way to get a quick response is by phone, 0407200963.
I had a similar issue with the ATR45SAT with timing being limited up top. I made 289rwkw on 98, on my 25NEO. Told it was most likely exhaust, i have 3" bell mouth dump to 3" straight pipe. What brand dump/front are you running?