Ok when I got my 84 GN there was a passenger side Postons header and cross over pipe in the trunk. Seeing that my passenger side header was cracked to hell I replaced it with the one in the trucnk and put the cross ver pipe on as well. I have the factory 84 drivers side header still in the car but had to weld it up. The question I have is this. Is the drivers side header from a 86-87 IC car goint to dump out in the same spot as my 84 header and but right in to the cross over pipe as well??? And also does the 86-87 header flow better then the 84-85 header???