Categories
- Audio & communication( 96 )
- Bike protection( 35 )
- Brakes
- Electrical( 82 )
- Engine
- Exhaust
- Fairings & body( 128 )
- Footrests & floorboards
- Frame & suspension( 533 )
- Fuel & air systems( 0 )
- Handlebars controls & mirrors( 569 )
- Lighting( 159 )
- Saddlebags & luggage( 59 )
- Seats( 923 )
- Sissy bars( 0 )
- Transmission & drivetrain( 166 )
- Wheels & accessories( 85 )
- All collections
S&S Cycle MK45 Performance Mufflers, Black Tracer, Part Number 550-0670
Regular price $819.95 USD
Category:
Upgrade your motorcycle’s exhaust with S&S Cycle MK45 Performance Mufflers in the Black Tracer finish. Designed from decades of riding, racing, and tuning experience, these touring mufflers deliver a deep, refined rumble while supporting improved horsepower and torque. Their performance-focused construction and distinctive styling make them a practical choice for riders seeking enhanced sound, response, and visual appeal.
The MK45 mufflers combine a stainless steel baffle with RaceTEX cartridge packing to help produce a strong, controlled exhaust tone. Styled aluminum endcaps add a unique finishing detail, while the Black Tracer exterior provides a clean, aggressive appearance that complements a wide range of custom motorcycle builds. The removable dB reducer allows riders to adjust the exhaust character according to their preferences and riding environment.
S&S Cycle Part Number 550-0670 is built for riders who want dependable touring performance without sacrificing style. These mufflers are made in the U.S.A. and engineered with the quality expected from S&S Cycle performance components. Professional installation is recommended to help ensure proper alignment, secure mounting, and optimal operation. These mufflers are not intended for use on trike applications.
Features:
- Performance-Oriented Design: Developed through decades of motorcycle riding, racing, and tuning experience.
- Deep Exhaust Tone: Produces a deep rumble with a controlled touring sound.
- Stainless Steel Baffle: Supports durable construction and consistent exhaust performance.
- RaceTEX Cartridge Packing: Helps shape the exhaust note and maintain performance-focused sound control.
- Performance Enhancement: Designed to support improved horsepower and torque.
- Styled Aluminum Endcaps: Add a distinctive appearance to the mufflers.
- Removable dB Reducer: Allows adjustment of the exhaust sound characteristics.
- Black Tracer Finish: Provides an aggressive, custom look for motorcycle applications.
- Made in the U.S.A.: Manufactured by S&S Cycle with performance component expertise.
- Application Notice: Not intended for trike applications.





