Jason Howland
Member
2001 EB with Mach system, Currently pulling and replacing the factory subwoofer as I have zero base throughout my system. I had heard about plugging the hole in the back of the factory box and thought I had heard about the cone being flattened or removed somehow? Any tips on any mods while I'm this deep into it is appreciated. There was a bunch of matting material in the box when I pulled it. Should I put that back in when putting in the new sub?