Yesterday I posted a question about a company in japan called NS Company.
One of the things they make is a high flow plenum (pic below). The throttle bodies appeared to be a good bit bigger than stock. I found out that it is called the "triple butterfly chanber" plenum. I am sure it is actually chamber and was prolly just a standard "engrish" transaltion error. If anyone knows anything about this product or company let me know.