Yoshimura Quiet Insert - RS-4

• Product Details

  To this day - everything Yoshimura does revolves around building fast machines and winning races. What motivated Pop's Yoshimura over 50 years ago is the exact same thing that motivates Yoshimura today. Racing and winning. There is no other endeavor that they would rather be engaged in.

  • Replacement Low-Volume Insert Kit for Yoshimura RS-4 mufflers.
  • Non-spark arrested.
  • Decibel reduction depends on application.
  • Available as optional kit on applications requiring different sound restrictions.
  • Kit includes:
  • Low-volume insert tube.
  • End-cap collar.
  • Set screw.

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• Yoshimura Quiet Insert - RS-4 Review

• 2 Questions about the Yoshimura Quiet Insert - RS-4

• Fitment

• # Part Numbers for the Yoshimura Quiet Insert - RS-4

  Product Variant	Manufacturer Part #
  94dB	INS13K
  94dB 1.5 in Diameter with spark arrestor	INS-2M28-K
  94dB 1.625 in Diameter	INS10K-CL77

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