Hey guys, we were tinkering around with an Evo8 yesterday and came up with some really weird results. We were testing a new anti-stall attachment and decided to just run complete vent to atmosphere. Guess what? The car ran just fine under all conditions Especially considering that the BOV is wide open under vacuum producing a leak after the MAF anytime you're under vacuum.

Anyhow, the car runs fine. The sidenote is that I'm not feeling the kind of bucking that you used to see before under part throttle modulation. There isn't any need to filter the BOV because it is blowing air out the BOV all the time like in this vid http://www.youtube.com/watch?v=B_RWZASfE3M