What's left in my car isn't perfect, but photos are attached if they're of any use. It went all the way up to the door jamb and foot well. I cleaned out some of the loose material that was no longer adhered. I dont recall quite so much on the firewall as the drawings suggest, though. It has been a while... Passenger side is shown.
I would imagine you've seen it, but just in case, there is a diagram in the mechanic's manual.
Great photos, just what I was looking for! My fronts were pretty much biodegraded on picture day.
With those photos I can extend the perforation pattern in the surviving piece I have to duplicate the fronts. I don't remember the perforated panels running up the firewall either, certainly wouldn't been as high as any pedal holes. Just the 4 elevated panels in the passenger compartment in attached diagram. Never seen that little one on the tunnel either. Trunk for sure is some of that same grit infused asphalt/bitumen material slathered under & over the floor panels.
Near as I can tell with the one good piece I have, it looks strikingly like 1/16th black waterproof door panel, glued down and slathered over with the above mentioned product, then painted body color.
I'm going to cheat on the tar products and go with silicone. Trunk floor is already in bedliner.
Thanks, much appreciated!
Edit: Here's a pic of the only panel of 2 cars to come out intact: