Sounds are channeled into a chamber that deadens the volume to the outside world.. Because cracks or holes in the muffler can compromise its effectiveness to trap noise, Stens pays special attention to the overall durability of its mufflers. Made specifically to work with machines powered by small engines, these mufflers are available for many brands of engines and lawn and garden equipment, including Briggs & Stratton, Kohler, Cub Cadet, Tecumseh, Snapper, John Deere, Honda and Stihl.