A lot of the old mufflers have little bits of the stuff that is inside, falling out and they are noisy. Any ideas about refilling them with something? I wonder has anyone tried this? I was thinking about ramming an old kitchen scourer into one, the stainless steel type. The look like a bunch of metal drillings. Then when the mower is running and warmed up, the smell of fried rice coming out of the muffler would make mowing the lawn a very pleasant task, and build the appetite. yay