Universal CrateMuffler Resonator Option 3in Center/Center 3.5in Round x 10in - Null Sound Center/Center (BOR400939)Perfect for applications with limited space. If you want to lower the sound pressure level (SPL) of your CrateMufflers, you can install the Resonator Option. The Resonator Option is designed to attenuate overall sound. This resonator can also be used in any system of this diameter. This is perfect for customers looking to reduce the sound level 2 3 dB(A). This straight through design will not degrade the performance of your vehicle. There is no logo
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