Seeing Denny's post reminded me that I stumbled on a company that does exactly what Denny suggests back when I was researching my replacement muffler. I checked my files this morning to find the info.

Homer52, here is a link to a complete exhaust for a '41.

http://waldronexhaust.com/cart/index.php?main_page=product_info&products_id=4719

This is the only place I could find that had the front and back pipes for my '57 back when I was looking. Ran down lots of dead ends. For kicks, here is their link to a '57 full kit.

http://waldronexhaust.com/cart/index.php?main_page=product_info&products_id=4224

Matt