Product Description :
For the Milwaukee Eight motor, Cobra modified their PowerPort by enlarging it to become a pulse chamber that accelerates exhaust scavenging to produce the kind of power riders expect
The round shape, bulging from between the heat shields gives a clue to the real power potential it offers
Stock H-D mufflers will not work with this head pipe because of the stock muffler’s internal construction.
Most aftermarket mufflers will fit