Exhaust Silencer Resonator 2.25 inch 57mm 4" Round x 22 Profusion 304 Stainless
And the sound level makes it Best Sounding Performance Muffler. Rule of thumb, the more massive the silencer, the quieter it is. Muffler Body Shape: Round. Muffler Type: Straight Through. Muffler Body Finish: Polished.