Dynomax 17220 Exhaust Muffler

Dynomax Ultra Flo Welded Muffler Overview

The Dynomax Ultra Flo Welded Universal muffler is a stainless steel, straight-through performance muffler built for 3-inch exhaust systems. Part number 17220 uses an absorption-style design with a deep performance tone and universal fitment for a range of single-exhaust applications, including popular truck and SUV platforms.

Built for drivers looking for a performance muffler for a 1997-2004 Ford F-150, 1998-2001 Dodge Ram 1500, or 1997-2001 Ford Expedition, this model focuses on airflow, durability, and sound control in one welded package.

Key Features

• Brand: Dynomax Ultra Flo Welded Universal
• Part number: 17220
• 3-inch inlet and 3-inch outlet with center inlet configuration
• Oval stainless steel body with natural finish
• 100-percent welded construction for long-term durability
• Straight-through absorption design for reduced restriction
• Continuous Roving Fiberglass (CRF) technology to control interior resonance
• Reversible layout for flexible exhaust routing
• Universal fitment for single-exhaust performance applications

Product Details

The Dynomax Ultra Flo Welded line is engineered for performance exhaust systems that need strong flow and controlled sound. This muffler uses a straight-through internal path and stainless steel construction to handle demanding street and performance use. The oval body measures 14 inches long, 9.75 inches wide, and 4.5 inches high, with an overall length of 19 inches.

Part number 17220 is a practical choice for owners upgrading a 3-inch exhaust on vehicles such as the Chevrolet Silverado 1500, Ford F-150, and Dodge Ram 1500. It is also listed for additional single-exhaust applications including the Ford F-150 Heritage, Dodge Ram 2500, Dodge Ram 3500, Ford Expedition, Lincoln Navigator, Dodge Durango, and Ford F-250 within the stated model years.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Excessive exhaust restriction from a restrictive factory muffler
• Muted or inconsistent exhaust tone on a performance build
• Interior resonance caused by an aggressive exhaust system
• Corrosion concerns in a stainless steel exhaust upgrade
• Fitment needs for a universal 3-inch single-exhaust layout

Installation Notes and Tips

Compatible with 3-inch pipe connections and a center inlet configuration. Because this is a universal muffler, confirm available space for the 19-inch overall length and oval body dimensions before welding into the exhaust system. Reversible orientation gives additional flexibility during layout on single-exhaust builds.

For fitment-specific searches, this muffler is commonly selected for 1998-2003 Ford F-150, 1998-2001 Dodge Ram 1500, and 1997-2001 Ford Expedition single-exhaust applications. It is also used in performance exhaust setups for the Chevrolet Silverado 1500 when a 3-inch universal muffler is required.

Quality Assurance

Dynomax backs the Ultra Flo Welded muffler line with a Limited Lifetime Warranty and a 90-Day Performance & Sound Guarantee. The welded stainless steel construction and CRF sound-control design are intended to support long-term use in performance exhaust systems.