Yoshimura R&D of America, Inc.

RS-12 PREMIUM MX MUFFLER REPACK KIT

RS-12 PREMIUM MX MUFFLER REPACK KIT - Main image
RS-12 PREMIUM MX MUFFLER REPACK KIT - View 2
$46.69 $72.95 In stock

Category: Replacement Service Parts

Off-road systems need to be repacked after 6-8 hours of use, or after each Race. Repacking your muffler at the suggested intervals is essential for your exhaust to perform the way it was designed. Dirty packing restricts airflow from your motor, which results in a loss of power and degradation of sound. Repacking your muffler allows for freer airflow from your motor, which restores lost power and improves the exhaust sound.

Includes:


  • Premium Packing Material
  • Rivets
  • Rivet Band
  • Decals for Muffler sleeve and end-cap
  • Repacking Instructions
Before you pay

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When it ships

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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 (5.0 / 5 · 5 reviews)

Isabella M. ★★★★★

I’ve been repacking after every race day and the pre-cut fiberglass strips fit perfectly inside my muffler, saving me from cutting material myself. The kit has enough material for at least two applications.

Natalie Y. ★★★★★

The pre-cut fiberglass strips saved me so much time compared to cutting my own, and my bike sounded crisp and clean right after the first ride. It makes the 20-minute repack job feel like a no-brainer for keeping performance up.

Ellie F. ★★★★★

Took the kit out to the track after installing it and the exhaust note sounds crisp and clean again, just like when the bike was new. The pre-cut wrap fit snugly around the core without any trimming, which saved me a ton of fiddling around in the garage.

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