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 with a Yoshimura exhaust repack kit allows for freer airflow from your motor, which restores lost power and improves the exhaust sound.
Each kit includes enough components to service two RS-9D mufflers:
Stainless steel rivets
500 gram silent sport premium muffler packing materials
Fitment is guaranteed or your money back plus free return
Don't waste time installing a product that doesn't fit. We
worked hard ensuring that this product is an exact fit on the
vehicles listed below.
CRF250R 4-Stroke 2014-2017
RC 390 2015
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