Did you know a freshly packed silencer or muffler actually restores power?
FMF Packing is comprised of fine, blended interwoven
fiberglass fibers made to FMF’s specifications for high heat
resistance, great sound attenuation and optimum performance and
longevity.
Sellers note ;
** If you have an older 500cc 2 stroke or even a 250cc with a larger silencer, then x1 of these probably ?? won't be enough to repack it.
This may also apply to an enduro silencer, which tend to be a little longer than the mx version. **