JDM is pretty rare here, well, well done JDM, its all about the look your going for. to me, a USDM Type-R front end doesn't look as good as a JDM Type-R front end. and some OE JDM parts perform better than OE USDM parts, as well as the engines giving more power and better gear ratios. but a BA4 with an INX front end rolling around here would get respect, how many INX have you ever seen, and i like the Silvia S13 front end better then the USDM flip-up headlights, because i just don't think it looks as good, and an S15 front i think looks real swell, but you'll never really see many S15s here either, will you? and stock for stock SR20 turbo VS ka...
and i think the stock NSX-R seats were way hotter then the type-s

but yes, it can be riced out, but it can also be a way of extensively changing the look and style of your car without drawing alot of attention from someone not in the know. and some of the parts from Japan like top-secret and spoon and stuff like that are fairly unique over here, or at least in FL