Originally Posted by Uncle Scotty
no...those are just supports for the scoop
The horizontal line between the left and right arrows is the actual splitter for the top and bottom. Since it's an STI, as far as I've seen, they have one center support to brace the horizontal split. Unless that's only on the 04/05 splitters because of the taller scoop, then that's my mistake. Ignore center arrow.
Parts I was trying to highlight:
Looking now, the center yellow arrow would have been above the scoop, so move it up a bit/ignore it.