I am not familiar with the interior of the Legacy's (Legacies?) but I just got my empeg installed in my 2006 WRX. The intaller made a custom "gauge pod" sort of thing for the empeg.I don't know if the Legacy line has as space for such a thing. It looks pretty good, but the controls are uncomfortable to use. Nothing a well placed remote wouldn't fix.

I will post install pics in a new thread as soon as I can find my camera battery charger... it's in a box... somewhere.