Actually I have seen 1VDs floating around my local craigslist in south florida (craigslist miami is like the old Silk Road dark web), so I'm not sure how (il)legal these imports actually are. If I was by a land border I'd just assume it was all dubious and someone drove it over and pulled the powertrain but I suspect you can get these engines through the customs inspectors at MIA and JAX just based on
the number of listings I see. But as I've never imported JDMs I can't be sure.
Or it could just be that since
the EPA is non-existent down here and there are no emissions restrictions, regardless of the port of entry these engines end up in places where you can
roll to your heart's content.