Usually a certain generation civic part will fit a certain generation integra part (4th gen civic to 2nd gen integra, 5th gen civic to 3rd gen integra) but since the weight is different of the two cars, the suspension parts might do funny things. Like civic springs on an integra will drop it more than it's supposed to and very unevenly. I don't have firsthand experience with this but I think this is generally how it goes. HTH a bit.

Ben