Shop Peterbilt 389 DPF & Mufflers

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Peterbilt 389 Exhaust
Peterbilt 389 DPF & Mufflers

Limit the noise coming from your truck with Peterbilt 389 aftermarket noise reduction mufflers and more. We have different styles and sizes of custom, chrome, and aftermarket mufflers to ensure you find the perfect one for your big rig. Shop at 4 State Trucks for top-notch mufflers.

Peterbilt 389 DPF & Mufflers

Peterbilt 389 DPF & Mufflers Upgrade or maintain your Peterbilt 389 with high-quality exhaust components, including stainless steel and aluminized mufflers, diesel particulate filters, and muffler inserts in various sizes. These parts improve airflow, enhance performance, and reduce maintenance. Accessories like exhaust filler trim and shields are also available to boost your truck's appearance.