i found some gsr rear seats for my civic eg hatch on ebay, but the seats are from a 4door, will they fit??

 

They will fit, I have seen it done, but you might have to cut a little bit of your rear paneling on the sides to squeeze them in...they look really good in there though...Post some pics of the process you took of fitting them...

 

i know for a fact that the bottom's will fit but it'll be a tight squeeze with the tops, not too sure the size. i have 2/door integ seats front and rear in my hatch. but actually it's alot better to have the 4/door bottoms, with 2/door tops because the 2/door bottoms will leave a little gap.