The BMW 318 Series muffler is a component in the exhaust system, designed to quiet the sounds of the engine. The process of combustion creates intense waves of sound that are expelled from the exhaust valves of the engine along with the exhaust gasses. These sound waves would be intolerably loud if allowed to pass from the vehicle unrestrained.

The BMW 318 Series muffler is designed to process these sound waves to reduce the amount of noise that is produced by the vehicle as it travels. The BMW 318 Series muffler uses several sound reducing methods to accomplish this task, the first one employed as the vehicle emissions enter through a perforated tube, the sound waves broken up and their intense pressure reduced as they are forced through the tiny holes.

After passing through the perforated entry tube, the sound waves enter several baffled chambers inside the BMW 318 Series muffler, where they a re bounced against each other, some of them canceled out in the process. The multi layered and heavily insulated outer shell of the BMW 318 Series muffler reduces the engine noise further before the sound waves are allowed to pass out into the tail pipe of the vehicle to be released. This process quiets the noise produced by engine combustion to a tolerable level, reducing the noise pollution emanating from your vehicle as you drive. We carry a selection of quality BMW 318 Series muffler replacements in our online catalog, all at great low prices.Our secure site will make ordering your BMW 318 Series muffler quick and safe, or our toll free phone line is available for your convenience, with courteous customer service assistants waiting to help you with your order.