Daniel replaced the BOV "to vent hot air out of the supercharger, to reduce heat" or something along those lines.
This is what he told me just after he put the gze in.
Forgetting the reason why he put it in, he does not run the standard ABV, so some type of vent needs to be in between the motor and the supercharger in case of an inlet backfire. If it is locked up tight with no vent, and u have an inlet back fire.... well things get nasty!