![SOUND INSERT KIT RS-4D Muffler, BOTTOM, 1.250" (INS-BB-K)](http://www.shopyoshimura.com/cdn/shop/products/INS-BB-K_A_92x92_crop_center.jpg?v=1568830460)
![SOUND INSERT KIT RS-4D Muffler, BOTTOM, 1.250" (INS-BB-K)](http://www.shopyoshimura.com/cdn/shop/products/hqdefault_9ce7deb3-010f-40a1-89a6-3f165b2823f0_92x92_crop_center.jpg?v=1668714699)
*Product may vary by application
WARNING: Cancer and Reproductive harm - www.p65warnings.ca.gov
- 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
- Low-Volume Insert Tube
- End-cap collar
- Set screw
- Kit Includes:
*If you have any questions about fitment or applications, please call our Sales Department at 1-800-634-9166.
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This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and aftermarket accessories not found on a bike as delivered from the factory may not be compatible with this product.
Attention international customers: This product was designed and tested to be compatible with vehicles in the U.S. marketplace only. Compatibility, including fitment and performance, may vary by marketplace.