Muffler

The Muffler is attached to the exhaust stack of the engine to reduce noise and increase back pressure which helps low speed performance. The pressure of the gases is reduced when they pass through the muffler, so they go out of the tail pipe quietly. Made of metal, the muffler is located underneath the body of the car. It is connected between the tail pipe and the catalytic converter. Performance cars have modified mufflers to increase air flow and also, sometimes to incrase noise. There are two types of muffler designs. While one type uses several baffled chambers to reduce noise, the other sends the gases straight through perforated pipe wrapped in metal or fiberglass. This type of muffler is designed for the purpose of reducing backpressure and, consequently, makes slightly more noise.