Borla CrateMuffler Resonator Option 3in Center/Center 3.5in Round x 10in - Null Sound Center/Center - 400939 fits_1984-1987`Corolla Test fit covers before removing

Test fit covers before removing adhesive backing

Dyno-verified gains of +11 hp and +12 lb-ft of torque at the wheels mean every drop of the hammer is backed up by real performance

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2002-2006 Jeep Wrangler X 4

Borla CrateMuffler Resonator Option 3in Center/Center 3.5in Round x 10in - Null Sound Center/Center - 400939 fits_1984-1987`Corolla Test fit covers before removingPerfect for applications with limited space. If you want to lower the sound pressure level (SPL) of your CrateMuffler(r)s, you can install this resonator. This compact bottle bullet style resonator can also be used as a universal resonator in any system of this diameter. The Resonator is designed to attenuate overall sound. This is perfect for customers looking to reduce the sound level 2 3 dB(A). This straight through design will not degrade the