i got one for the back of my old replica off ebay and it was perfect, very surprised at the quality. just as good as origional and very reasonably priced...not sure if its the one your after or not though??
small one that goes in the corner of the bootlid http://cgi.ebay.ie/NEW-BLUE-WRX-Bad...d9d8024&_trksid=p3286.c0.m14#ebayphotohosting