what's the performance benefit from losing the bov? as from what i see the jam glanza and infini gt ran without one if i'm correct and these guys really know their cars.
as from an audible benefit it's just oh so touge style..
err because you cant afford one or just prefer the sound.
With a bigger turbo i would fit a valve just incase, but have a tight spring so it'd chatter at low revs and dump when giving it some, Best of both worlds