My guess is that he was adding a conventional splitter as we all know it, but did not fully fill the front "gap" between the top of the splitter and the bottom of the stock bumper cover (what we would normally consider the extended air dam). So the splitter kind of just "hung" beneath the front bumper. And then perhaps some vanes or other items of some sort were added to the top of the splitter to direct air upward or towards a specific spot...