Originally Posted by firekirin

This is the way it was explained to me by a friend. You want to put the bov on the hot side close to the throttle body. The reason is as the pressure goes through the fmic it lowers slightly and then as it hits the other side the pressure will increase and as soon as you let off the gas the throttle will have the most pressure at that point so the bov will release it immediately which reduce the strain on the turbo..