Shop Peterbilt 386 DPF & Mufflers

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Peterbilt 386 Exhaust
Peterbilt 386 DPF & Mufflers

Replace your muffler no problem with Peterbilt 386 aftermarket mufflers and easy ordering from 4 State Trucks. Shop our inventory of custom, chrome, and aftermarket mufflers. We have Peterbilt mufflers that will perfectly fit your big rig and budget.

Peterbilt 386 DPF & Mufflers

Find aftermarket Peterbilt 386 DPF & Mufflers. Keep your Peterbilt truck running strong with top-quality DPFs and mufflers from reputable vendors. Choose from stainless steel mufflers to aluminized exhaust piping and Cummins ISX DPF replacements. It's easy to upgrade your exhaust system with durable, corrosion-resistant parts that improve performance and fuel efficiency. So, whether it's a replacement or an upgrade, we've got you covered!