This thread is full of fail. OP, all of the respected vendors have threads with lots of info in them, you really should read each one carefully as this thread is full of bad info and childish name calling.
STILLEN 370Z Supercharger System - Announcement!!!
GTM Performance Engineering 370Z SUPERCHARGER KIT PRESS RELEASE
STS 370Z Single Turbo System
Boosted Performance single turbo build
GTM Performance Engineering: GTM TD05 16G Test Results 91 Octane 7AT
S&R Performance First Single Turbo
Your best bet is to pick some kits that you like and to actually PM people who have the kits you are interested in. Unfortunately on this forum, if you pick a kit that someone deems to not be their choice they will jump all over you.