TC Bros Choppers do it yourself builder’s exhaust flange kits fit all Harley Davidson engines including all Sportster '57-up and Big Twin models. This DIY flange set is perfect for the exhaust pipe builder who has access to a tubing bender. Tubing is 1.75” OD x 16ga Wall (.065” Thick) American made mild steel for superior weldability. These heavy duty flanges are designed to provide a leak free seal.
