Description
If you’re running a Harley-Davidson and want measurable gains in power and torque without sacrificing rideability, the S&S Cycle 550-0679B exhaust delivers real performance improvements through optimized exhaust flow and high-flow catalytic converters. The relocated cats reduce unwanted heat at the rider, while the deep bass character and SAE-compliant sound signature make this a functional upgrade that feels as good as it performs. Best of all, it’s 50-state legal and EPA/CARB certified, so you get genuine performance without compromise.
- 4.5″ billet endcaps
- Highlight machined design
- High-flow catalytic converters
- Stock O2 sensor location
- Accepts wide-band sensors
- Cats relocated to mufflers
- Reduced rider heat
- Deep bass rumble
- SAE J2825 compliant
- 50-state legal
- EPA/CARB certified
- EO K-010-15
- Made in USA
- Bolt-on installation
- MPN: 550-0679B
