One thing I really dislike about Subaru is that they've changed the distance between the roof rails almost every model year - and that the precise distance is not stated anywhere publicly accessible. (The factory service handbook lists all kinds of measuring points but the roof rails aren't among those.)
Together with the fact that the cheap bastards sell the rail-equipped cars without crossbars by default, you get aftermarket hell: subtly different gear to be sold for every model year.
I resent that. A lot. And I'm certainly not willing to pay $270+ for a set of factory crossbars (or similar money for a non-sooby rack).
So looking for secondhand gear for your soobyroo is more annoying then necessary as you'll have to match the model year - or buy bars that are longer and cut the alloy part down a bit. For those who might consider this and want to know what you'd get with MY99-03 Outback/Liberty crossbars, here's the info: The front bar is longer, the alloy profile is 75.5cm long. The plastic/resin endpieces (screwed in) add up to a distance outside rail-outside rail of 90cm (inside-inside 84.5cm). The rear bar is 1.5cm shorter.
We now conclude this publice service information announcement.