Description
If you’re running a Fat Bob and want real power gains without compromise, these S&S Cycle Grand National mufflers deliver measurable horsepower and torque while replacing that stock whisper with a race-inspired rumble. The ceramic black finish and iconic Grand National endcap give your bike the aggressive look to match the performance underneath. Best part? They’re fully street-legal with the included dB reducer, so you get peak performance when you need it and compliance when you ride.
- Up to 12% horsepower increase
- Up to 6% torque increase
- Requires Stealth Air Cleaner Kit
- Stainless steel perforated baffle
- Removable dB reducer included
- Meets J2825 sound levels
- Ceramic black finish
- Race-inspired Grand National endcap
- All hardware included
- Bolt-on installation
- Made in USA
- Fits Fat Bob models
- MPN: 550-0734







