Integra or Civic

Haha, I'm not being mean or anything, but are you a fairly new person to the import world or cars in general? Don't take it the wrong way, but yeah mods will effect a car in many different ways. Also an Integra is just a much better car, that is unless you get a SI, and here in the Integra forum you'll hear a lot of hating on the SI, but its that bad of a car, its cheaper then a new GSR, and its not bad for a first car (I'm assuming its going to be your first car or Honda at least), though a GSR would be so much nicer, and you can find an older one like a 95 for cheap now, and they'll last forever. Plus GSR is stock faster, and there's a lot of aftermarket support for it, or if you have time and money and want the luxury of the GSR and not have to pay as much, a turbo GS is nice too...
~Jason