do not believe the swap can be done go to your dealer and look at the skematic for canadian roofs than see if he has the usa roof skematic i believe that they are not interchangeble canada and usa have two completely different roof racks systems and internal structures, do your homework at your dealership do not take anybodies blind advice until you research it throughly good luck and please post what you found out my source was mazda canada when i was looking for the filler pieces when i removed my usa rack. called to get the part numbers good luck...