Had the wagon upgraded to a 2.25 pipe with a thrush welded muffler with the tail pipe out behind the rear tire. It's very quiet still, suprisingly, but has a little burble which is pretty cool.
These motors in stock or relatively stock form are quiet even straight piped lol.
Slantsixdan always said they are pretty loud with chambered mufflers, but mine doesn't have drone or anything.
But Dan doesn't like to hear his exhaust...