If any of 370z owners are interested in this, I could look into organising a GroupBuy here. Please state your interest and comments bellow.
More details bellow:
http://peony888.com/VS/SprintBooster.pdf
http://www.sprintbooster.us/Nissan_Boosters.html
http://www.sprintbooster.us/FAQ.html
http://www.sprintboostersales.com/detail.cfm?year=2009&year_end=2012&make=Nissan&model=370Z&engine=Gas
There are lots of positive feedback on the US forums, feel free to read here:
http://www.the370z.com/engine-drivetrain/20402-gas-pedal-delay-10.html
http://www.the370z.com/nissan-370z-general-discussions/24456-have-you-guys-heard-sprint-booster.html
http://www.the370z.com/engine-drivetrain/71146-sprint-booster-370z.html