Power Flo Mufflers for FL – Black

4.5″ diameter muffler bodies taper to 4″ at the front; 4.5″ machined aluminum, thin-line tips; 3″ diameter muffler cores for superior performance; Acoustical engineering developments allow an incredibly deep sound because of intense, class-leading resonance absorption and prevention; Use proprietary materials with specific acoustical dampening and thermal insulation properties; The frequency and location of the perforation patterns in the cores creates significant sound scattering in the mid frequencies, which helps to enhance the low frequency tones; Made in the U.S.A.