no links but i just gotta say that my ZEN is the loudest BOV i have heard so far. thats not saying much but it is very loud. you can pull up next to people who hav etheir windows rolled up and scare the shit out of them.
they are not made naymore though so youre basically SOL if you want it. or youll have to look through MR2 forums to find it.
this was my engine along time ago: