Trying to find out the exact model of your Japan-import Legacy is like going down the rabbit hole.
You are after one close to the top one, but you might actually be looking at the bottom one. We were happy if we could a bonafide manual GT-B.
We decided that if we could convince ourselves the car we were eying up had Bilstein shocks (what I am taking as the ‘B’ in ‘spec B’) then we were getting what we were paying for. There seems to be differing opinions that ‘B’ stands: For ‘Blitzen’? Or just B=better? I am sticking with Bilstein. I failed to find a telltale answer online to answer the question “Does it have Bilsteins?” (perhaps because it is a question an ignoramus asks?) so here my answer.
Hopefully this will be useful to someone who asks the sales-person the same question on a second-hand car dealer’s forecourt and they shrug their shoulders.