Yoshimura R&D of America, Inc.

SOUND INSERT KIT 2M-MAX RS-4 Muffler, 1.375" (INS-2M26-K)

SOUND INSERT KIT 2M-MAX RS-4 Muffler, 1.375" (INS-2M26-K) - Main image
$23.39 $32.95 In stock

Category: Replacement Service Parts

  • 2-METER MAX 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 (5.0 / 5 · 5 reviews)

Ella ★★★★★

Finally got the RS-4 back on the buggy with this insert kit, and it’s just the right reduction for our track. The non-spark arrested design is exactly what I needed for closed-course use.

Steven ★★★★★

Installing this 1.375" insert dropped the bark of my RS-4 to a much more pleasant tone without killing all the flow. The non-spark-arrested design was exactly what I needed for my track setup.

Joshua A. ★★★★★

I was worried the sound would still be too loud, but this insert dropped the decibels just enough for my neighborhood runs. The 1.375" size fit perfectly into my existing RS-4 setup without any modifications.

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