Replaced both the AC and the alternator belt last week. Above is the OEM alternator belt with only 45,500 miles on it... Pretty crappy condition. The AC belt was in much better shape.
Replaced them with Gates belts which I was able to confirm fitment from this thread: http://legacygt.com/forums/showthrea...es-180035.html
I hear it's pretty common that the OEM belts are complete garbage but I was a little surprised to see how much they sucked.