S&S CYCLE 4-1/2" MK45 Performance Mufflers - Chrome Tracer 550-0669 Tires Adjustable pressure relief valve is

Adjustable pressure relief valve is adjustable with unit installed in engine

96" Sidewinder

No re-balancing of 883 cc flywheels

wrist pins

Use of the factory dual cable system ensures safe operation

S&S CYCLE 4-1/2" MK45 Performance Mufflers - Chrome Tracer 550-0669 Tires Adjustable pressure relief valve is4 1 2" MK45 Performance Mufflers Chrome Tracer 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, Removable dB reducer, Made in U. S. A., Not for Trike applications