best duramax muffler
Before testing this Rudy’s 5″ Polished 304 Stainless Steel Muffler for Diesel, I didn’t realize how much exhaust drone and corrosion risk quietly gnaw away at a bedded-in Duramax setup. After hands-on use, the difference is clear: a polished 304 stainless body that resists rust, a 5″ inlet/outlet for steady flow, and a compact 14″ … Read more