Yoshimura RS-4 94db Low Volume Exhaust Insert

• Replacement Low Volume Insert Kit for RS-4 mufflers
• Non-spark arrested
• Available as optional kit on applications requiring different sound restrictions
• Decibel reduction depends on application
• 1 1/2" diameter
• Made in the USA

Kit includes:

• Low Volume insert tube
• End Cap Collar
• Set Screw

Low-volume inserts are for non-spark-arrestor equipped bikes; reduce noise levels for AMA or FIM competition sound requirements Spark arrestor inserts are U