If we're talking about MK3 Focus ST Recaros, don't bother... they really aren't comfortable. Not even in a sporty sort of way. Before we bought our MK3 I test drove a couple ST's, one with Recaros and one with the Ford "sport" seats and the latter was a much more comfortable car. I'm not a big guy really, and I happily fit in our OMP TRS racing seats in our rally car, but those Recaros are just uncomfortable for some reason. We ended up not even getting a ST because I just didn't like the car enough to justify the $6k premium.
YMMV of course, but in my mind half the reason I bought a Volvo was for the epic seats on long hauls. Replacing them with something less comfortable would be defeating the purpose of the car for me.