So I have a pretty bad exhaust leak where the header mates with the head and I have come to the conclusion that it is a defect in the header. The welded seal on the header around one of the ports is not large enough and therefore does cover the entire opening on the gasket. I hope this makes sense. I'll try to post some photos that will hopefully clarify. You can see the indention of the welded seal on the headers on the gasket. I have already tried multiple types of gaskets, even the metal kind, and I'm pretty sure that no matter the gasket, it is still going to leak. So my question is should I just buy new headers, or is it possible to weld more metal on and then grind it back down, creating a bigger sealing surface? Or is there an alternate solution I have not thought of? If I can avoid buying new headers, I would like to, as I just got a brand new exhaust build from the headers back and I would probably have to get that modified if I got new headers that will probably not have exactly the same dimensions as the current ones. Thanks in advance for any help you have to offer.