Your Harley-Davidson Softail gives you classic style with a modern ride. And these Vance & Hines Softail Duals were designed to enhance that nostalgic look while delivering exceptional performance and sound. The 2-Into-2 true dual pipes feature full-coverage heat shields, mounts for O2 sensors, and a louvered-core baffle for sound control. Optional Fishtail 450-433 end caps sold separately Uses a louvered-core baffle, which can be replaced with an optional quiet baffle 450-376 Includes mounts for O2 sensors. 2001-06 models will require the purchase of O2 bungs 443-405 Purchase of the Vance & Hines Fuelpak or Fuelpak FP3 (for 2007 and later models) is recommended when installing Softail Duals on motorcycles with electronic fuel injection; Note: Vance & Hines does not ship metal exhaust gaskets with the Softail Duals. Metal gaskets may be purchased separately 4400281