well it was just a question. I had broke off the exhaust flang stud and had to drill it out. My exhaust hasn't been right since. I bought the set off the guy for $100. I am going to try the on3 kit and figured if I was going to be dropping the k-member, why don't I just go ahead and get a set of headers or replace the manifolds. I found this guy and he came down from 150 to 100, so I bought em. I kindof figured they have to be somewhat better than the stock manifolds. Also I don't drive my car in the rain or snow so I am not worried about them rusting out.