I here you! My first set of race headers were 1 7/8 Hamburgers Perf. ( the same as Tubular Automotive which I have now )I bought them used from a friend with out instructions, what an adventure that was! I`m on my 3rd set and still don`t have the mounting sequence memorized.

68 Dart 410 / 904
92 D150 original owner
21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4
23 Audi Q5
16 Honda HRV