The PR WRX will be the same as yours. The blue WRX in the pics was cought about 4 months ago in the docks. That WRX's final destination: Argentina.
As for importing a car from PR to the US, that wouldn't be a good idea. PR's car taxes are very high.
Political situation correction:
PR is not owned by the US. Puerto Rico in a non incorporated, free-asociated territorry of the US. Bassiclly we get almost every federal aid in exchange of letting the US Navy bomb Vieques and to have a huge submarine base in the eastern part of the island. Oh and almost forgot we don't pay federal taxes.
William (Guy with the sunglasses signaling WRX badge)
1999 Impreza 2.5 RS
2000 Outback Limited Wagon