I'd bet that the tooling used to build the least expensive headers is actually the best out there. TTi is not using anything more exotic then the other guys. What makes the ttis more expensive is where and who is building them. I could also see them being that expensive if they were going through the CARB certification of late model applications, but they are not. What they are doing is making lots of profits, there is nothing wrong at all with that, but don't pretend that they are not. Me, I'll have my slaves over in China whip me out another set when I need them.