There is a slot in the bottom of the lower cowl that extends quite a bit forward of the front gear leg. The reason this is so long is to allow the cowl to be slid up/back and bizarrely rotated in order to capture the exhaust pipe through its opening. In order to close that space, there is an aluminum plate that is held in place with nut plates. I wonder why they didn’t make two slots (one each for the exhaust pipe & leg) with a simple plate for each?
front view of close-out plate
rear view of close out plate