So I install a STI scoop on the wagon, but wanted to make sure I was getting the most benefit from it. I didn't want to spend the $75 or so on a OEM splitter, so I made my own. I fabbed it up out of cardboard first to get my measurements close and test fit things. Then I moved to aluminum since it was easy to bend In the end I used steel and had the sides as separate pieces. This provided the sturdiest option and ease of assembly (vs the 1 piece aluminum ...