How do mufflers actually work? Are mufflers made of special soundproof material?
Your exhaust system – and the muffler in particular – is very sophisticated, although you can’t really appreciate it just looking under your car. If you were to cut it open you would likely find what looks to be a bundle of metal tubes with holes in them. And while they might look simple, inside the muffler these tubes work together to force sound waves to hit one another in very precise ways, canceling the sound in the process. With all this hidden engineering, it’s no wonder mufflers can’t be a one-size-fits-all replacement part.