I know just the pipes you are talking about. Paughco still is in business and just re-introduced the mufflers you want. They are made to slip on 1 and3/4" pipes. www.paughco.com Hutch
Off Topic:I have no idea about their products, but the paughco web site is one of the worst laid-out sites I've seen in a long time. Lots of dead ends and missing links. And the catalog was hard to read and looked like a text book index. Their opening page provided me with the most useless informaiton ever: My screen resolution. I'm fairly sure I already knew it, and I'm not impressed that they thought it important enough that it was the first thing they told me about themselves.
It's hard to put a lot of faith in a company, when their representation is so shoddy. They spent way too much time on flash and bang, and far less time on content and actual testing of the flow and content.
Their web page is a company's first, and sometimes their only, chance to make an impression on a potential customer.... poughco impressed me; I probably wouldn't buy from them.
End of rantpost script: Rhett:
The Royal Enfield pages are well thought-out and designed, and I enjoy going through them. Thanks for your efforts; you've done a good job.