S&S CYCLE Grand National Mufflers - Ceramic Black 550-0725

If you're serious about extracting maximum performance from your engine, exhaust system design directly impacts your power output. The S&S Cycle Grand National Mufflers deliver a measurable 17% horsepower gain and 9% torque increase when paired with the Stealth Air Cleaner Kit—that's real-world performance backed by engineering, not marketing promises. Built with a stainless steel perforated baffle design and engineered for a deep, purposeful rumble, these mufflers give your engine the breathing room it needs while maintaining the acoustic character serious riders demand.

• Stainless steel construction
• Perforated baffle design
• Removable dB reducer included
• Up to 17% horsepower gain
• Up to 9% torque increase
• Race-inspired engineering
• Deep performance tone
• Made in USA
• MPN: 550-0725
• Ceramic black finish