4" Grand National Slip-On Muffler - Stainless Steel - Sportster S 550-1111

Grand National Slip-On Muffler - Brushed Stainless Steel - X500 550-1114

• Brushed stainless steel muffler body with exposed TIG welds • Race inspired Grand National end cap • Removable dB reducer (J2825 compliant) • 3-1/2 lb weight savings over stock (1.5 kg) • 4%...

Improved horsepower and torque (when used with a Stealth Air cleaner kit; sold separately)Race-inspired designRemovable dB reducer for back pressure and sound tuningMeet J2825 levels for soundAll...

Improved horsepower and torque (when used with a Stealth Air cleaner kit; sold separately)Race-inspired designRemovable dB reducer for back pressure and sound tuningMeet J2825 levels for soundAll...

Improved horsepower and torque (when used with a Stealth Air cleaner kit; sold separately)Race-inspired designRemovable dB reducer for back pressure and sound tuningMeet J2825 levels for soundAll...