I know the late '90s Outbacks were prone to them. My son just junked a '99 (well, sold it to a mechanic for $800, which some way was a good deal) after the head gaskets failed for a second time. He's thinking of buying a later model, perhaps '04 or '05, and so we're wondering whether Subaru ever really solved the problem, which seems to be related to the flat-four 'boxer' configuration.
<br/> We bought my wife an '07 2.5i Outback last year (used), so this is of more than academic interest.
<br/> /Mr Lynn