2.75" Header/Exhaust Pipe Collector w/Donut Flange and Clamp Repair Kit Made of Stainless Steel Can be Welded to Existing Piping or Clamped-On Donut Flange Gasket with Spring Bolts for Flexibility Male and Female Flanged Sides Included to Join 2 Pipes Together Inlet/Outlet: 2.75"(ID)/2.75"(ID) / 5.9" Length