The New Advantage 2 Header from Southern Express. Designed to swing away from the rider for additional arm clearence. When you first pick up this header, you can tell it is well-made and heavy duty. It has an I.D. of .930" The loud end has been machined to allow fitting of the muffler of your choice. It is Ceramic Coated and comes with it's own brace. The BP and Pro Stock classes will see a lot of this header.