90 header differ 91?

[MCD]

i have been looking for a header but all of them seem to be for 91 and up. is there really a difference in header designs from 90 to 91?

 

[FatXJ]

91+ does not have the EGR bung on the header, not a problem if you can put one on or plan to remove the EGR.

 

[MCD]

i mean as far as bolting them on. i have a 90 xj