Hi everybody. I just recently swap an obd1 b18b1 in my 99 civic ex coupe. I've searched and searched and can't find an answer. The problem I have is that the down pipe from the headers can't bolt up to the civic's stock catalytic convertor cuz the the hole where the bolt goes to don't line up(I have spoon headers, it reaches the civic cat convetor). So I need to know if I need to get an integra cat convertor? Or should I just use a test pipe? And if I get a test pipe do I get one for a civic or integra? I need help please.