You must have one of the very very compact alltrac ones. I would ask for a photo but I don't think my eyes are good enough to pick it out.
The oem one on my mr2 was great, did the job but you have to have it recirculate back into a baffled air box, the partial throttle wooosh was really really annoying.
I have the one that came on my Caldina engine. I imagine it's identical to the gen3 and probably gen2 mr2 ones. Part throttle wooshing does get annoying after a while.
Bryan "NoShoes" Moore used two OEM BOVs on his high horsepower street build. You can find some pics on mr2oc if you're interested.
Probably the most enjoyable thing I have ever installed. Most likely because it was so easy and there was no pain involved. I will see how it sounds. I will have to have a new intake made if I want to recirculate it.