Customer Service (503) 832-7336
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Free standard shipping on orders over $149
We ship to the lower 48 United States. Orders over $149 ship free; a flat rate applies under $149. Estimated delivery dates are shown at checkout based on item availability and the shipping option you choose.
We text or call to confirm sizing & fitment before we ship.
Every Factory SuperBike order includes a free expert check from real riders. Before we ship helmets and gear, we text or call to confirm your size and fit; for parts, we verify fitment to your bike. This is why we don't have to guess and you don't have to gamble.
Helmet & gear orders: reply to our text to confirm and your order ships, typically same day. No reply within 48 hours and we'll call you. Questions now? Call or text (503) 832-7336.
The Yoshimura Premium Muffler Repack Kit is the replacement packing material for RS-2 and DS-4 mufflers, supplied cut and shaped for the canister rather than as bulk material.
Off-road mufflers go through packing faster than street ones. A dirt bike spends far more of its life at high rpm and high exhaust gas temperature, and the packing burns out accordingly — on a machine that gets ridden hard, an annual repack is closer to routine maintenance than a repair.
The warning signs are a louder, harsher note and a canister that starts to rattle or drone. Beyond the noise, running with the packing gone exposes the perforated core to the full heat of the exhaust, and a core costs many times what a bag of packing does.
Fits Yoshimura RS-2 and DS-4 mufflers. Confirm your canister family before ordering — packing is cut to specific dimensions and is not interchangeable between Yoshimura muffler series. If you ride land that requires a spark arrester, check that yours is still serviceable while the canister is apart.
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