Ok was reading about some individual throttle bodies and looking at them and i was just wondering how they hooked up and worked exactely like i know it give each cylinder its own throttle body basically. but do you need a filter over each 1 or do they all run with no filter? Also is it proven to give you alot more power or just alittle? And also are they worth the price that alot of them cost? Just a question no need to flame.

Thanks