S&S Cycle Grand National Slip-On Muffler For Harley

S&S Grand National Slip-On Mufflers For Harley

Features:

• Up to 12% more horsepower and 6% more torque (when used with Stealth Air Cleaner Kit)
• Race inspired design
• Removable dB reducer for back pressure and sound tuning
• Meets governmental regulatory J2825 levels for sound
• Deep performance rumble replaces stock whisper tone
• All hardware included
• No mapping required
• 50-state legal