Bremnem parts.
ECS News Porsche 986 Boxster Air-Oil Separator - 99610702304 - Air-Oil Separator - ES#2771573
Too bad they don't make the big "motorsports" version with the tapered bottom to fit 986 for that same price point (~$1000 I think for the Porsche version...)
I wonder how it holds up? I wonder what else they make. I never heard of them before now...