Looking for an answer to the question: Are 2 mufflers louder than 1? On this page, we have gathered for you the most accurate and comprehensive information that will fully answer the question: Are 2 mufflers louder than 1? The round mufflers are available in sizes ranging from 4” to 7” in diameter. Our oval mufflers are also available in a variety of sizes, … [Read more...] about Are 2 mufflers louder than 1?