Is your WerkesUSA exhaust a little too loud? Bolt this in to reduce the decibels's by about 8-10%. The Large Exhaust insert fits WerkesUSA slip-ons with 2.00" (50mm) diameter exit. Dual exhausts require two inserts.
For exhaust with 1.625" (41mm) exits please see our Small Insert
Note: Only compatible with WerkesUSA exhaust with 3 mounting bolts in the exit of the muffler.
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