Yoshimura R&D of America, Inc.

SOUND INSERT KIT YJP R-11 Muffler (INS-YJP-04-K)

SOUND INSERT KIT YJP R-11 Muffler (INS-YJP-04-K) - Main image
$30.97 $49.95 In stock

Category: Replacement Service Parts

  • Replacement Low-Volume Insert Kit for Specific R-11 Mufflers
  • Available as optional kit on applications requiring different sound restrictions
  • Kit Includes:
    • Insert Tube
    • Insert Collar
    • Set screw
    • Lock Washer

*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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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 (5.0 / 5 · 5 reviews)

Andrew B. ★★★★★

The set screw holds everything snugly in place, so there’s no rattling even after a few weeks of riding. My R-11 sounds noticeably quieter now, and the included collar made alignment a breeze. Exactly what I needed to dial in the noise level.

Elizabeth ★★★★★

Installing this was straightforward — the set screw and loc fit perfectly into my existing muffler. Exactly the sound restriction change I needed for my setup.

Elizabeth T. ★★★★★

The low-volume insert kit dropped the exhaust note to a much more bearable level, and the collar slid on without any fiddly alignment. Took about ten minutes to swap with the included set screw, solved exactly what I needed.

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