Are you sure this is for an SVX?
the Powerchip site comes back with this message for all (OBDI or OBDII)
"Unfortunately there is no Powerchip upgrade released for the Subaru SVX 3.3 at this time. Your vehicle has been seen by Powerchip but with our current technology we cannot upgrade the ecu at this time."
http://www.powerchipgroup.com/