thinking of buying a set of dc headers but i am curious on the carb numbers. i am talking to a guy who has a set dc for 100 bucks. great deal. just cant seem to get him to know what i mean on carb numbers. if it has dc stamped right on top does it mean they will have those numbers or is it possibly not the case. i am only asking because never purchased dc. before. have mugen headers now. and it is this way on mine. mugen on top and numbers on bottom end. so any info on these headers appreciated.