Peterbilt 389 Glider DPF & Mufflers

Limit the amount of noise your exhaust system makes with an upgraded Peterbilt 389 Glider aftermarket muffler. We carry top-notch mufflers with a huge selection of sizes and styles to ensure you find the perfect muffler. 4 State Trucks has you covered with the perfect aftermarket muffler for your semi truck and budget.