ACCESSORIESHD - 1 3/4 Inch Black LAF Ground Shakers Exhaust for Harley-Davidson SPORTSTERS 1986-2013 WITH FORWARD CONTROLS 1 3/4" Diameter 1986-2013 sportsters with forward controls and 2014-2015 with o2 sensor adapters not included 18MM O2 BUNGS, AND COMES WITH PLUGS IF YOU BIKE DOESN'T USE 02 SENSORS Comes with mount that secures the 2 pipes to each other.