muffler question

I have the thrush welded as well..

in car.. NO interior and the exhaust is dumped.
[ame="http://www.youtube.com/watch?v=nK1zwupvXvU"]73 Dart short drive - YouTube[/ame]

This was before the engine was rebuilt, same exhaust though
[ame="http://www.youtube.com/watch?v=C37-3LYwA90&feature=relmfu"]73 dart 360 thrush mufflers - YouTube[/ame]