I am at a loss here. If you have a USDM Z and are in the process of registering your car in Japan, you still have to meet JCI. Second, a USDM Z will have all of the necessary emissions equipment on-board already (unless it has been modified). Third, if you are military...........there are steps that you can take to make it work. Will it be worth it........not by a long shot.
My experience is with European (TUV) standards, which are slightly tougher than Japan (JCI), but not as bad as California (CARB) or Hawaii (RECON). I have been stationed in Hawaii as well. My road dog while stationed in Italy, brought his car with him from Japan. All I am saying is that you may regret this undertaking and wish you would have just picked up a 1971+ Z or 1989+ Skyline. If you have any more questions, feel free to PM me and I will put you in touch with some people that can help you through the process.
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 2007 350Z NISMO #0618: Zerolift | UPREV | F.I. | Greddy | Competition Clutch | Injector Dynamics | Aeromotive | Pioneer | JL
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