Dump mufflers are used on the exhaust ports of manifolds and valves to quiet down the sound of releasing air when lowering your vehicle. Some dump mufflers will also slow down the speed at which the vehicle airs out by reducing the rate of airflow exiting the system. There are a couple different styles of dump mufflers and choosing the right one for you depends on the way your system is set up. If you have any questions about selecting the dump mufflers that will work best for your applications, feel free to contact a Bag Riders air ride specialist for more information.