Pat did some major surgery on tapered mufflers, but he cut the ends off.
http://www.dinqua.com/Triumph/pipes0.htmlOther approaches:
1. Find some slash cut pipes to work on.
2. Look into mellowing the Epcos out.
I don't know how they're made, so wouldn't know any particulars.
Here's what I did with some Specialty Spares:
http://www.bonnevilleamerica.com/forums/...true#Post226922The 1/4" hardware cloth took a little edge off.
I'm running 1/8" now.
You can also do similar with a washer (restrictor).