Mufflers & Silencers

MK45 performance mufflers feature a bold 4.5" OD diameter with new gloss black Cutlass end cap design Stainless steel baffles with RaceTEX packing Produces a deep bass rumble throughout the RPM range 34" Length 7 horsepower gain 50-state...

MK45 performance mufflers feature a bold 4.5" OD diameter with new gloss black Cutlass end cap design Stainless steel baffles with RaceTEX packing Produces a deep bass rumble throughout the RPM range 34" Length 7 horsepower gain 50-state...

Muffler bodies measure a full 4.5" outer diameter Unique louvered baffle delivers a more aggressive tone, even with stock head pipes S&S racing heritage-styled end caps with a tuxedo black finish SAE J2825 sound level compliant (with...

MK45 performance mufflers feature a bold 4.5" OD diameter with new gloss black Cutlass end cap design Stainless steel baffles with RaceTEX packing Produces a deep bass rumble throughout the RPM range 34" Length 7 horsepower gain 50-state...

MK45 performance mufflers feature a bold 4.5" OD diameter with new gloss black Cutlass end cap design Stainless steel baffles with RaceTEX packing Produces a deep bass rumble throughout the RPM range 34" Length 7 horsepower gain 50-state...

Muffler bodies measure a full 4.5" outer diameter Unique louvered baffle delivers a more aggressive tone, even with stock head pipes S&S racing heritage-styled end caps with a tuxedo black finish SAE J2825 sound level compliant (with...

Mk45 Slip-On Mufflers are the result of decades of riding, racing and tuning Combining both a stainless steel perforated core baffle with Race-TEX cartridge packing, they create a deep rumble and improved horsepower and torque, all while adding a unique...

Mk45 4.5" Touring Mufflers are the result of decades of riding, racing and tuning Combining both a stainless steel baffle and fiberglass packing, they create a deep rumble and improved horsepower and torque, all while adding a unique look with...

Mk45 Slip-On Mufflers are the result of decades of riding, racing and tuning Combining both a stainless steel perforated core baffle with RaceTEX cartridge packing, they create a deep rumble and improved horsepower and torque, all while adding a unique...

Mk45 4.5" Touring Mufflers are the result of decades of riding, racing and tuning Combining both a stainless steel baffle and fiberglass packing, they create a deep rumble and improved horsepower and torque, all while adding a unique look with...

Mk45 Slip-On Mufflers are the result of decades of riding, racing and tuning Combining both a stainless steel perforated core baffle with Race-TEX cartridge packing, they create a deep rumble and improved horsepower and torque, all while adding a unique...