electronic BOV
And when I saw the thread title I was thinking of those fake blow of valves that used a speaker to make noise.
I heard hks had an electrically controlled bov a while back, not sure if its still available. It was intended for diesel applications. But seems to just use a solenoid to control line pressure.
http://www.hksusa.com/images_products/1746.jpg
http://www.hksusa.com/images_products/1746.jpg
