QUOTE(Cire @ Nov 3 2009, 06:11 PM)
So I guess when I do my rear end stiffening kit, I should see it penetrating through to this side of the trunk?... = ) Cool.
No. That section is double walled. The "stiffening kit" only attaches to the outer skin.
What you see in the picture is someone seam-welding the factory spot-welded metal.
Andy