They were on my car when I bought it. Previous owner wasn't really a car guy he just gave someone money and they put them on so he didn't know what brand they were. I put my stock manifold back on to pass emissions so I figured I'd just sell them and use it to pay for the motor mount I most likely need.(read my last post) If I am going to sell them I will repost in the proper area and take better pictures with my name and date. I just want to know what brand it is and get an idea of what they are worth. There is no name or markings on it whatsoever. It's a 4 to 1 header and didn't require the fans to be moved when taking it out. That's all I really know about it. Thanks.