Yoshimura R&D of America, Inc.

SOUND INSERT KIT RS-4 Muffler, 1.500" RING (INS-22-K)

SOUND INSERT KIT RS-4 Muffler, 1.500" RING (INS-22-K) - Main image
$29.89 $40.95 In stock

Category: Replacement Service Parts

  • 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
  • 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.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Owen T. ★★★★★

Finally a way to dial in the sound without buying a whole new muffler. The 1.500" ring fit perfectly and brought the noise level down just enough for my neighborhood. Simple swap, took about ten minutes.

Victoria R. ★★★★★

Took the RS-4 from obnoxiously loud to a much more manageable bark with this insert kit. The 1.500" ring fit perfectly into the existing muffler without any modification needed. Exactly the sound control I was after for trail riding.

Grace ★★★★★

Dropped this insert in to tame the RS-4 on a quiet neighborhood street, and the low-volume ring cuts the bark without killing the tone entirely. It’s a simple swap, maybe 15 minutes with basic tools, and the decibel drop was noticeable right away. Exactly what I needed for a stricter sound restricti

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