iSmkGrnBud Posted July 7, 2020 Share Posted July 7, 2020 About how often should we be repacking our TwoBrother mufflers? On their website nothing is definitive, it sounds like from them that twin cylinders at high RPM are A LOT harder on the packing than in 4 cylinders and don't last nearly as long. I hoon the bike constantly and am always in WOT or decel (aren't we all?). Link to comment Share on other sites More sharing options...
mossrider Posted July 7, 2020 Share Posted July 7, 2020 Repack mufflers? Absurd. Folks that do, weigh the can new then periodically thereafter. Repack when they drop +/-300 or so grams. Others repack when the sound goes phflart. Some when power gets different. Still others repack with a new can as they blow up or get ground off. Varies by owner, use, abuse, mileage, etc. 2 Link to comment Share on other sites More sharing options...
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