S&S CYCLE 1801-1502 550-1074 4-1/2" Grand National Slip-On Muffler - BlackFeatures Provides a look and feel of the classic Sportster wrapped around a very modern drivetrain The S&S Grand National slip on for the Nightster compliments that styling while letting the modern engine breathe while adding a much needed exhaust note Color matched to factory header and shield Grand National Thruster machined end cap Removeable dB reducer (sound level tunable) (J2825 compliant) Made in U. S. A. Specs Product Name Muffler Type Slip On