Location for 3" Tube on Pass Side, 70 Duster

I have used the 2-1/2 inch S bends with those type of 1 size fits all header. I don’t know how much of an offset the headers were that I used vs each other and yours. But the headers that were used were Summit’s, Hooker & Hedman IIRC.

Now the 3 inch tube could very well create a fitting issue. IF you want to possibly try an experiment and for a small tuition fee, learn the old fashion way of trying and possibly succeeding, I suggest purchasingthe S bends and two 3 inch slip over exhaust tube connectors and cut the straight side of the pipe down the amount you need. Clamp now and/or weld later.

This has worked for me on the 2-1/2 S pipe before but I can’t remember what header was the problem.