Gibson CFT Superflow Dual/Dual Oval Muffler - 4x9x13in/2.25in Inlet/2.25in Outlet - Stainless

This Gibson CFT Superflow muffler uses a unique chambered and louvered core design, measuring 4 inches by 9 inches by 13 inches with 2.25-inch inlets and outlets. Unlike packed mufflers, this non-packed design ensures that its sound and performance characteristics won't degrade over time. The fully welded stainless steel construction means it's built solid internally, resisting corrosion and ensuring longevity.

The internal design works by using resonance chambers and directional tuning ports to draw exhaust gases in and expel them at a higher velocity. This process aims for better volume efficiency and maximum exhaust flow, which can lead to increased power and a deeper exhaust tone. Because it's reversible, you have flexibility during installation, and the solid internal construction means you won't have to worry about packing material breaking down.