Fully installed and wow what a difference, the car feels brand new and drive-ability is second to none!
Slight chatter below 1,500 rpm is definite, but it's certainly not annoying or off putting in anyway
Also if anyone is interested:
http://www.carsales.com.au/private/details/Nissan-Skyline-2005/SSE-AD-2619110/?Cr=1