I have a 2008 WRX Sedan ... I bought the Factory Roof Racks and the ski rack that subaru sells ..
It is the best rack system you can buy for the Subaru. The Racks go on and off in less then 5 min ... the ski racks carry 5 sets of skis , plus you can stack them and the bindings will not hit the roof.
I've had 2 other racks , one on a 300M that was our first rack , had to lay the skis side by side because the bindings would hit the roof. The second were for our 4 runner , those are Thule those made a ton of wind noise so we had to buy the front wind dam. Ended up pop riveting a 3/16 flat sheet of aluminum to the ski rack then mount the wind dam to that. Putting the Thule on/off is a PITA.