Description
If you’re running a cruiser that deserves better breathing room, the S&S Cycle 550-0851A exhaust delivers measurable gains in power and torque while keeping your bike street-legal across all 50 states. The repositioned catalytic converters reduce heat at the rider’s seat, and the high-flow design produces a signature deep bass rumble without sacrificing rideability or compliance. You get real performance with the convenience of bolt-on installation and full O2 sensor compatibility.
- 4.5″ billet endcaps
- Highlight machined thruster design
- High-flow catalytic converters
- Deep bass rumble tone
- Improved power and torque
- Reduced rider heat
- Relocates cats to mufflers
- Stock O2 sensor compatible
- Wide band O2 ready
- Includes sensor adapters
- EPA and CARB compliant
- EO K-010-15 approved
- Meets SAE J2825 sound
- Made in USA
- Bolt-on installation





