S&S CYCLE - 4-1/2" GNX SLIP-ON MUFFLERS - GUARDIAN BLACK4 1 2" GNX Slip On Mufflers Guardian Black Highlights Muffler bodies measure a full 4 1 2" outer diameter Unique louvered baffle delivers a more aggressive tone, even with stock head pipes S&S racing heritage styled end caps with a tuxedo black finish SAE J2825 sound level compliant (with included dB installed); dB reducer is removable Made in U. S. A. + Fitment 1995 Harley Davidson Electra Glide Classic EFI FLHTCI (Street) 1995 2016 Harley Davidson