ACCESSORIESHD - 1 3/4 Inch Black LAF Ground Shakers Exhaust for Harley-Davidson SOFTAILS 1986-2013 1 3/4" Diameter 1986-2013 HARLEY DAVIDSON SOFTAILS 2014-2015 NEED 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.