Introducing new styles and finishes as well as our proven Thermal R&D mufflers. Check out our new options here!

Thermal R&D Universal Mufflers are perfect for those tackling custom builds or looking for a change in sound and performance versus a stock muffler. These universal T304 stainless steel mufflers are offered in a variety of styles, shapes and finishes for long-term durability, without sound degradation.