• Yoshimura INS-RS9B-K low volume sound insert
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Yoshimura

Yoshimura RS-9 Muffler Low-Volume Sound Insert Kit, 1.250" (INS-RS9B-K)

Yoshimura RS-9 Muffler Low-Volume Sound Insert Kit, 1.250" (INS-RS9B-K)

$40.95 USD
$40.95 USD
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Shipping calculated at checkout.

A quieter insert for RS-9 mufflers, handy where sound limits are stricter. Decibel reduction depends on your application.

🔍 Does this fit your bike?

  • Fits Yoshimura RS-9 / RS-9T mufflers, including the Grom 2022-2026 RS-9T systems.
  • Check Yoshimura's insert chart for your application.

⚠️ Before you order

  • No returns on performance parts — please double-check your model year and fitment before ordering.
  • Not spark-arrested.
  • Questions on fitment: Yoshimura sales line is listed by the maker.

✓ What's in the box

  • Low-volume insert tube
  • End-cap collar
  • Set screw
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