Why is it necessary to support the weight of the muffler?

Supporting the weight of the muffler is crucial to prevent overstressing the expansion joint. The expansion joint is designed to accommodate movement due to heat and pressure changes within the exhaust system, allowing for proper flexibility. When the weight of the muffler is not adequately supported, it can exert excessive force on the expansion joint, leading to premature wear, potential damage, or failure. This can disrupt the integrity of the exhaust system, resulting in leaks or other issues that could compromise performance and safety. Proper support ensures that the expansion joint can function as intended without undue stress, preserving the longevity and effectiveness of the exhaust system.