I appreciate that, thanks. I wasn't 'offended.' I accept the risk in presenting ideas, especially new ideas. More like slightly chapped about the comment about 'over thinking', when it's actually thinking at a higher resolution. If engineers stayed safe and thought at lower resolution to stay clear of 'over thinking', our motorcycles might still look like this: I had never before considered re using muffler packing either, until I got in there and saw what was there. It's a 2-year-old bike, so not like it had a million hours on it. The cookied (coked)-up first wrap around the core looked unrecoverable at first, but it burned out nicely. I showed only the pic of the thin layer of pink insulation laying over the recovered area just before being rolled tight. You can see the white-ish look of the burned out fibers just above the pink stuff, however. Regarding repacking a 2008 GasGas, I did those before, like on my 2005 GasGas. That's the old-style final muffler with straight-in design and constant cross section from one end to the other. The new designs are integrated into the center muffler and more compact and swoopy looking. A consequence of compact and swoopy is significantly more difficult packing installation because the muffler exit at the cap is radically tapered down. Someone's high resolution (over) thinking was the Rasta hair. Mat packed in there will work, it's just more of a pain to get in there. And the perforated tube isn't straight. It's super difficult to guide it home from the inside of the tube. D2W, the 4-stroke packing idea is good, thanks. The mat I found in the Sherco was much denser than I expected. On the newer designs - Sherco-Scorpa at least - there is no way to push all of the packing in at once, maybe. I just think I'd've gone insane trying it, and the packing would have gotten all torn to hell. Does the Rasta hair packing sound deaden more than mat? I'm guessing yes, but I haven't tested it so that's just a religious comment.