snkbte,
Congratulations on Rego. I saw your car at Ian's workshop and it is one nice looking piece of kickar$e Cobra. I love your description of driving it and can't wait for the feeling.
I got 1-3/4" primaries from Di Fillipo as he said that the outlet hole in the LS1 manifold was 43.5mm, so I should go with the 1-3/4". Being that he does exhaust for a living, and I sit on my chair in front of a computer. I reckoned he may know a bit more about it than I do.
Hopefully, I will have the same problem as Phil. Low end torque being an issue, and just fix that with a bit of loss of traction. I love the solution Phil..
