Left out some valuable info: The front struts are GR2s while the rear struts, springs and tophats are OEM STi.
Did about 5 minutes of research and this setup should drop right into:
2002-2003 Impreza WRX, WRX Wagon, 2.5RS, 2.5 TS Wagon, Outback Sport
2004-2007 Impreza WRX, WRX Wagon, 2.5i, 2.5RS, 2.5 RS Wagon, Outback Sport
2004 Impreza STi