Doesn't matter where it's from in japan.. Honestly RHD cars in the u.s. are a PITA.. tolls/drive-throughs/etc all make it a pain.. Don't forget you have to change the spedo for inspection as rhd cars read in KMH not MPH. And while the LHD/RHD instrument cluster might be the same, on some cars they're different so don't plan on just switching them unless you're sure it'll work.
Rather than waste your money you'd be better off buying one here and putting that 6k into the car rather than blowing it. SR20DET front clips are dirt cheap(at least if you're spending the kind of money you're talking about) My .02
xxblown408: Nice stangs. Interesting manifold on that one. Why does it lead into the firewall? I assume piping is re-routed through there for a aftercooler?