Muffler Repack and Sound Insert Kits

Need to make your dirt bike, atv, or SXS a little less noisy? We manufacture a variety of Low Volume Inserts that will decrease the dB level of your off-road motorcycle. Some applications have multiple options. Consult the chart for your application.

Download our reference chart for Yoshimura Off-Road Applications Sound/Spark Arrester Inserts and Muffler Repacking Kits. Find for your Make, Model and Year, then identify your exhaust system for applicable product kits.

oduct kits.

If you have any questions, please contact our Sales Department at 1-800-634-9166 or sales@yoshimura-rd.com.

Download Yoshimura Off-Road Repack and Insert Chart

 Repack / Maintenance Service

Who better to trust your equipment with?

Mufflers are a filled with fiber packing that needs to be replaced at regular intervals depending on the rider and conditions. Mufflers with degraded packing often rob power and can quickly damage components of the exhaust system and/or the motorcycle.

Yoshimura offers Muffler Refurbish services that are performed at the factory by the same highly skilled technicians that assembled your muffler when it was new. Who better to trust your equipment with?

To maintain maximum sound and engine performance the muffler packing will need to be replaced at some time during the muffler’s life.

Yoshimura recommends repacking your muffler at least once a year. Failure to maintain the muffler packing may cause damage to the muffler and/or void the warranty. Regularly inspect the muffler body for discoloration, cracks, rattling, or other signs of wear caused by depleted muffler packing.

If muffler packing is determined to be depleted or worn, a Yoshimura muffler re-pack kit is highly recommended to restore the muffler to optimum maximum performance. Yoshimura offers a 3-5 day turn around (plus transit time) to inspect and refurbish used and damaged mufflers.

Standard Repack Service includes:

  • Pre-Inspection
  • Disassembly
  • Inspection of Muffler Internals
  • Tube Resizing
  • Surface Reconditioning
  • Reassembly using a Genuine Yoshimura Repack Kit

 Ready for service?

Contact our Yoshimura Technicians to get a quote.

1 (800) 634-9166


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Race series product restriction and affirmation


The RACE SERIES product you are purchasing removes, renders inoperative, or bypasses required elements of the emission control systems of EPA, certified motorcycles of motorcyle engines and may only be installed on motorcycles that are restricted to closed course competition. Installation of this product on a motorcyle that is ridden on a public street, highway, or public lands violates the tampering and defeat device provisions of the Clean Air Act & 203(a)(3)(A) and/or & 203(a)(3)(B) and may subject you to a civil penalty of up to $37,000.

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By clicking below, I affirm:
  1. that i have read the above warning;
  2. that any information I have entered is accurate; and
  3. that any motorcycle on which I install the RACE SERIES product will be restricted to closed course competition and will not be ridden on any public street, highway or public lands.