Yoshimura R&D of America, Inc.

SOUND INSERT KIT TRS 4.5" Muffler, Street (TRS-INS-BK)

SOUND INSERT KIT TRS 4.5" Muffler, Street (TRS-INS-BK) - Main image
$22.46 $29.95 In stock

Category: Replacement Service Parts

  • Replacement Low-Volume Insert Kit for TRS Mufflers
  • Available as optional kit on applications requiring different sound restrictions
  • Decibel reduction depends on 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)

Henry V. ★★★★★

Installed this insert kit on my TRS muffler over the weekend, and the difference in sound pressure is exactly what I needed for neighborhood riding without being a nuisance. The low-volume insert slid right in without any modification to the existing hardware.

Scarlett ★★★★★

Took my bike from obnoxiously loud to a daily-drivable rumble — the low-volume insert fits right into the existing TRS muffler and the decibel drop was immediately noticeable on my first ride. Installation took under half an hour with basic tools.

Joseph ★★★★★

Installed this in my TRS muffler and the difference is immediate—way more manageable without sounding like a restriction. The kit came with everything needed and bolted right up in under 20 minutes.

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