4-1/2″ MK45 Performance Mufflers – Black with Black Thruster

Mk45 4-1/2″ Touring Mufflers are the result of decades of riding, racing and tuning; Combines both a stainless steel baffle and RaceTEX cartridge packing; Create a deep rumble and improved horsepower and torque, all while adding a unique look with styled aluminum endcaps; Includes removable dB reducer; Made in U.S.A.; Not for Trike applications.