Performance pipes with a twist, Jug Huggers have the right mix of air flow and back pressure to make for increased performance and incredible sound. The stepped header design comes standard with an 02 sensor port for after market fuel management. The oversized removable heat shield gives the Jug Huggers a 2 1/2" fat look. Max-Flow performance baffles and chrome billet aluminum end caps are standard. Optional stealth baffles give you the option of getting quieter sound for your motorcycle and the O2 Sensor port comes standard for after market fuel management.