I just swapped my decrepid d16 for a jdm b18c and to my surprise it came with a header! When i bolted it to the motor the two bolt holes that are supposed to bolt to the header diagonally are opposite of the d16 header! I was wondering if anyone else had this problem swapping their b18c into a 93 civic coupe, and what header you used. Thanks.......btw to fix it (cheap!! :rockon: ) autozone sells a washer thing that opens and clamps onto the pipe with holes in it.......whatever i fixed it. :thumbup: