I spent an hour+ on mine with a maroon scotch brite pad to kill the shine and make it look more like the original plain unfinished steel. Then the weld broke, despite my using a 'slip fit' clamp as recommended. Thats another story for another thread, well beaten on the old fordbarn. Vince may have something about Aries SS mufflers on his website??
This picture shows that Aries SS muffler compared to a polished one.