Originally Posted by IronMonkeyL255
Except the '91-'94 Legacy turbos, which had a unique vented rear disc (i.e., no other model before or since has used the same disc).
Not in the US, at least. I think some early WRXes used them too.
Edit: I'm not saying the early t-legs didn't have vented discs, I'm saying maybe other models have used it, just not in the US.