The Briggs & Stratton 188301GS Lawn Mower Muffler helps reduce engine exhaust noise as combustion gases pass through the exhaust system. It provides a passage for directing exhaust gases away from the engine while dampening the sound produced during operation. A properly functioning muffler supports effective exhaust flow and quieter equipment use. Replacing a damaged or deteriorated ... https://www.wholetoolbox.com/briggs-stratton-188301gs-lawn-mower-muffler/188301GS.html