SOUND INSERT KIT 2M-MAX RS-4D Muffler, BOTTOM 0.750" (INS-BF-K)

Replacement Low-Volume Insert Kit for RS-4D Mufflers Bottom outlet of RS-4D End-cap Non-Spark Arrested Available as optional kit on applications requiring different sound restrictions Decibel reduction depends on application Please see our Insert Chart to confirm fitment for your application Kit Includes: Low-Volume Insert Tube End-cap collar Set screw *If you have any questions about fitment or applications, please call our Sales Department at 1-800-634-9166.