The BRIGGS & STRATTON 690931 Engine Muffler helps reduce engine exhaust noise while supporting smooth and efficient exhaust flow. This muffler is designed to handle the high temperatures produced during engine operation and helps maintain proper exhaust performance. Replacing a worn or damaged muffler can reduce excessive noise and help restore dependable engine operation. https://www.wholetoolbox.com/briggs-stratton-690931-engine-muffler/690931.html