Its just a flat board. You can put it on your roof if you're creative enough...
It provides triple digits down force... use the supports! Don't be like me and try to get away with not using the supports... it will bust.
Its a beautiful splitter in CF too... it matched my hood perfectly before I had to take it off and decided on the ACS T4 shortly after.
Here's a couple of shots of it before and after it was installed;
