I have some GioCaMoto slip on exhaust canisters on my '92 900SS. They were loud in '92, and now that I'm over 60, they're too loud. I could put the stock cans back on, but I don't like them and they would probably mess up the current FCR jetting. I would prefer to replace them with Termi or Staintune cans, but there never seems to be anything available at a reasonable price. Most of the Termignoni I see are like $1K shipped from Japan. Does anyone have an idea on what I could do to the GioCaMoto exhaust to quiet it a bit without totally changing the back pressure?