The Stainless Works 2.5-inch header builder kit supplies CNC mandrel-bent 304 stainless tubing with .049 wall thickness for custom header fabrication. The kit includes two 3/8" laser-cut flanges, twelve J-bends, two formed collectors and two filler diamonds to connect tubes, and is made in the USA. 308L SS welding rod is recommended for assembly to ensure reliable joins.
Stainless Works 2-1/2in Header Builder Kit