my CRX rusts in the rear quarters.

From what i've heard. there are some weather strips that go along the wheel well, and they trap moisture, and it will eventually start rusting along that lip, then it just spreads from there.

That's my first mod on ALL my CRXs, rip those biatches out. thats also a good way to check for rust, pull it away some and see if its rusted in there, or starting, so you can get an idea of what you have ahead of you