Hey everyone I was selling my used 350 and some guy contacted me thinking he could just shove it in his suburban and be all good, after talking I told him that is just not the case, then he mentioned had Pontiac ceramic headers already. I told him I'd post them on here and see what happens. They are brand new and cheap. I believe they are Flowmax but I could be wrong. Take a look and contact him if you want. He has no use for them and I just don't think he realizes what he has.