Well if you are talking about Springs...Yes, Civic Springs do fit DA Integra Struts...I've done it...I used 92-00 DropZone Springs...Check out my Build Thread to see how it looks...
well, you're right, however, I'm in TURKEY. and in this country, %99 of hondas are civic.
and I can't find sports springs for Integra. And shipping to Turkey from USA is a bit costly because of their weight. About 150-200 USD for shipping.