I have just purchased a set of the felpro's.I know the stock ones blow out easy but this fel pro is supposed to be alot better and its not made of copper.Its made from another type of metal.I got stock headers and i believe with the age and abuse of the headers through the years a gasket would make them a more straight fit and not leak because i have been running rich for years when there just bolted in there with some RTV sealant.Any guys have these gaskets??? and do these still blow quickly.I have heard they are much stronger then the stock ones