FYI:\n\nA few months ago I ordered an Emgo muffler for my old SR500 through\nAmazon. The web page said it would fit a 1.75" exhaust pipe. It didn't.\nI returned it.\n\nAfter a short hiatus while busy with other things, I tried again. Amazon\nshowed a Helix Dunstall replica that again was specified to fit up to a\n1.75" pipe. But having been taken once, I emailed the manufacturer to\ncheck on this. I was assured it would fit so I ordered it.\n\nYou know the end of the story - the #@$%! thing was too small as well!\n\nWhen even the manufacturer gives false info, I tend to get discouraged.\nDon't know what I'll do next. Maybe visit the local salvage yard with a\ndigital caliper.