The muffler is an important part of your exhaust system. It works by reducing the sounds that come out of the exhaust system. The other parts of your exhaust system include the exhaust pipe, tailpipe, oxygen sensors and exhaust pipes. Major issues can result if your exhaust system is not functioning the way that it should. Your car may be a lot louder than usual. Loud noises can be caused by a leak in the exhaust system or damaged muffler. You don't want to ignore this issue because it will only get worse.
Your engine may also misfire if there is something wrong with your exhaust system. This is a sign that your system is not efficiently letting out the fumes. Additionally, a poorly functioning exhaust system will cause the fuel economy performance to decrease. When your car's performance decreases, the fuel economy decreases.