Getting this CX down to reasonable decibels required a muffler. I had some stock ZX10R mufflers laying around. Upon cutting into them, I saw the lovely white sparks I haven't seen in so long, realizing they were completely titanium on the inside! Problem was getting titanium filler rod quickly wasn't going to be easy. I managed to cut some strips from the internals to use. Originally this was a 2 chamber muffler, but I modified it to a single chamber and shortened it about 4 inches. I packed it with some Jardine glass from another leftover muffler hanging around. The bike now has a nice deep mellow tone.