bumpim trying finding a muffler from halfcut shop
normally how we determine the muffler still good??
i know we should see whter the size ngam wif piping or not,then have dent or x.
but how to know whether the fibre or sum say carbon inside the muffler still good?
my current muffler the fibre finish i think cos after 3000rpm the sound like tin ksng.XD
anybody???
how to know the muffler still good or x?