No, it will not fit. That seller on Ebay says so in an auction for another RHD 13:1 Subaru rack.
Also, this link http://www.toronto-subaru-club.com/revlab/pages/r2qrack.htm concurs. BTW this link offers a 12.5:1 rack but it is expensive. They claim that it can be done by a shadetree mechanic. I think not.