Improve your Western Star 5900 SBA truck's exhaust system with our premium selection of DPFs and mufflers. This category includes various high-quality components, such as stainless steel DPFs, performance mufflers, and aluminized steel inserts. Designed for durability and improved performance, these parts offer excellent sound control, better airflow, and reliable emissions management. You can find the perfect fit for your truck's needs with various sizes and materials available. Upgrade your exhaust system today for enhanced sound.