BOVs

I was wondering what people were running form BOVs? Ive heard that dumping the the atmosphere can cause your wrx to run rich. If this is the case how rich are we talking? Has anyone seen decreases in gas mileage? What would you guys recommend?

worx tuning bov in my sti
runs sweet, not to loud like others, 50% vent 50% recirculate. no stalling probs.

HKS SSQV BOV is another really good BOV. It has a dual-chamber inside and i think it is one of the best to run on any boosted car and a lot of people agree with me. But Worx BOX 1.2v is also a bad ass BOV but i dont think it sounds as good as HKS.

I use go fast bits, it's loud. Sounds pretty cool.