Can you post pics of your header. I Got one and I had to call Nick @ thorley tonight to send me an "s pipe". Anyone have one of these or where you able to run there pipe from the header flange to the cat. My problem is the header rests on the inside of the torsion bar and the second pipe would have to be at an angle to meet the cat. Thorley is working with me on this and making it right so the do have GREAT customer service and will help you out.
hmm, i ran into this issue with my downey 4-1 header. the pipe will rest on the torsion bar and rub like a bitch! i just heated the lower pipe and "clearanced" it by pressing into it with a pry bar shaping a line through it curving around the torsion.