Removing the fiberglass the foot rest on a X-9

Im starting a install on a friends X-2. I want to put a sub in this location @ the drivers feet. There is a black fiberglass foot rest that is in my way. I want to cut it out and away. But I wanted to ask if any one has done this or know's whats underneath, before I do it, and if cutting ths away will be a problem. My main question. Is the floor finished underneath this foot rest like on a SAN

I have cut the foot rest away on SAN's before and its not a problem but never on a Mastercraft

Here is a photo of the fiberglass foot rest im talking about