Gibson 55106S CFT Superflow Dual/Dual Oval Muffler - 4x9x18in/2.5in Inlet/2.5in Outlet - Stainless. ManufacturerPart : 55106S. Gibson CFT Muffler actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel it at a higher velocity.
