FMF PowerCore 4 HEX Muffler 2013-2018 043342 1821-1472 Goldwing Curved Bill Hat Extensive stretch inserts around armpit

Extensive stretch inserts around armpit for optimum freedom of movement and an enhanced fit

The long bristle end can be used for cleaning other parts of the bike

Adjustment shaft is made of grade 5 titanium with a satin black fresh green process giving it a Rockwell 70 surface hardness

Localized perforation areas improve ventilation for cooling airflow on warm days

FMF PowerCore 4 HEX Muffler 2013-2018 043342 1821-1472 Goldwing Curved Bill Hat Extensive stretch inserts around armpitOverall increase in power and torque Durable stainless steel and aluminum construction Space Age internal packing material for maximum longevity Internal shape of core uses Hi Flo technology Enhanced sonic evacuation provides for higher flow and increased power Includes removable spark arrestor