I've seen some nice USDM things on the web, but I don't know if it's USDM only:
USDM taillights for the Civic or CRX
Storage compartments instead of a backseat for a CRX
Glastop for CRX (USDM only of JDM dunno)
Glastop for CRX were only for JDM ;) almost USDM have air conditioneers, third stop lights, rear bumper for small plate, someone loves usdm corners. there is some pros and cons about USDM and EDM cars :)