I have for sale a set of Berk test pipes, they have never been used due to the fact that I had to sell my Z before I had the chance to install them. They come with the O2 bung already welded on. I am missing the bolts and gaskets though just because they have been sitting in my garage for quite some time now. I do not have pictures right now but I can get them if requested. I am asking $150.00 plus where ever you may need them shipped. I am located in North Carolina and have no problem with local pick up if you are in the area.