okay okay i know that i cant get a header without getting a ex cat yada yada. well i was searchign the net and found a website of a dude with a 99 dx and he had a header. so i emailed him and he said that he doestn have a problem with a cel light because " if you untape the second 02 sensor wire it will reach and plug into an ex cat underneath. " now has anyone tried this casue i know some people with a grreat knowledge of cars(nexus242) for example have a header and he runs with the cel light on ( i beleive) so any ifo or if anyone has tried this let me know whats up thanks