Cobra USA COB-6521 4" NH Dual Cut Slip-On Muffler Chrome w/Black End Cap for Harley-Davidson Sport Glide 18-24Description for Cobra 4" Neighbor Hater Dual Cut Chrome Slip On Mufflers A discerning rider knows that sometimes loud alone isn't enough your bike needs to sound good too. Cobra utilized extensive sound and dyno testing to create the 4" Neighbor Hater Slip On Muffler, which provide look, sound, and perform unlike anything else on the market. Finished off with dual cut tips are the icing on the cake! These mufflers will make your Harley Davidson