Yoshimura R&D of America, Inc.

SOUND INSERT KIT RS-9 Muffler, 1.125" (INS-RS9C-K)

SOUND INSERT KIT RS-9 Muffler, 1.125" (INS-RS9C-K) - Main image
$28.67 $40.95 In stock

Category: Replacement Service Parts

  • Replacement Low-Volume Insert Kit for RS-9 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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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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 (4.8 / 5 · 5 reviews)

Steven ★★★★★

This insert dropped the exhaust note just enough to pass our local sound test without killing any power. The 1.125-inch size fit perfectly into the RS-9 muffler body.

Harper V. ★★★★★

I was skeptical about how much difference a 1.125-inch insert could make, but this kit did exactly what I needed to meet local noise restrictions without totally gutting the exhaust note. The install was straightforward, and the included hardware fit perfectly with the RS-9 muffler.

Penelope ★★★★★

Bought this to tone down the bark on my RS-9 for hunting; it installs easily and the decibel drop is noticeable without killing performance. The low-volume insert does exactly what it's supposed to.

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