If you want to lower the sound pressure level (SPL) of your new CrateMufflers?, or any muffler, you can install a resonator. The resonator is designed to attenuate overall sound. This is perfect for customers looking to reducing the sound level 2-3?B(A). This straight-through design will not degrade the performance of your vehicle. CrateMuffler. CrateMuffler? Resonator - 2.25" Center Inlet/ 2.25" Center Outlet 3.5" Round x 10" Long Body 14" Overall Length. Universal Part. Reversible Design.
