I dont know if anyone has added this info to this thread yet, but here you go. (so not reading 15 pages...)
These are the part tags from the first post with name and all courtesy of a local Menard's.
Elbow: notice the 3" side and the widened other side where the 4" opening of the air filter fits perfectly.
Rubber coupling: this type of coupling is commonly used for connecting pipes of different material and ensures a tight fit between the pipe and the throttle body
Holy ****... my first post outside of my intro may actually be useful. :P
