where's the header for 89-93 b2600i???

Has anybody heard or seen where a header can be found or made for the model years 89-93 b2600? I am getting exhausted looking for one.

don't think anyone manufactures them, i have seen some on e-bay before tho, you could always make one, 3/8" plate for the flange, and bend some pipe, weld it together, and coat it with some hi temp paint...just a suggestion for if your search fails..good luck!