These things are rare as freaking hen's teeth, as everyone toasts them when they remove the turbo and/or engine.
That said I am pretty sure I have not one, but 2 sets in the shed somewhere - I paid $150 a pair for them (I had committed to buy a set off a guy on the forums, transferred the money, then found a set locally and picked up that day, as I was super keen to get them on. Then I changed to a 2530 anyway and it came with braided lines).
If I can find them you guys can have them for $150 a pair - I guarantee you won't find them for that price at any wrecker and Nissan charge a mint for them.