Is this the "custom" header you have Northy, or is it as Wei Wei says, ported stock one? Just curious thats all. If its a ported stock one it answers alot of questions (though I relly do hope Wei Wei was kidding!) why would you hope he is kidding? there is nothing wrong with the stock ones and there is also very few headders for the 2zz that make more power then the stock ones. So this option is pretty good, some toyota's do get decent parts from the factory unlike some of the other jap cars....