Cobra 4 NH Slip-On Mufflers For Harley Touring A discerning rider knows that sometimes loud alone isn't enoughyour bike needs to sound good too. Cobra utilized extensive sound and dyno testing to create the 4 Neighbor Hater Slip-On Mufflers, which provide look, sound, and perform unlike anything else on the market. These mufflers will make your Harley-Davidson Touring motorcycle purr like a dragon. Features: The 4 tubes bell out to 4-1/2 for an aggressive and classic rear look 8 spiraled louvered-core baffles produce an aggressive bark Baffles also feature trumpet-shaped inner tips working in harmony with the rolled muffler tips for a clean, finished style and great sound Available in chrome or black