best economy muffler for 7.3 diesel
Contrary to what manufacturers claim about “no-wuss mufflers,” our hands-on tests showed that a true economy upgrade hinges on fit, durability, and flow. I compared 4″ diesel mufflers across stainless builds, straight-through designs, and TIG-welded joints, focusing on resonance, exhaust velocity, and ease of install. The standout performed with minimal interior rumble, steady flow, and … Read more