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Ships within 48 hours · Estimated delivery Sep 19 - Sep 24
Easy Installation and tuning
Mk45 4-1/2" Touring Mufflers are the result of decades of riding
Huge displacement increase means huge power increase
000" pistons for front and rear
S&S CYCLE 4-1/2" MK45 Performance Mufflers - Black with Black Thruster 550-0621 Tires Easy Installation and tuning4 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.
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