Be cautious if fitting DC2 rails into an Civic....one of the bolts don't line up, people do modify them - using a large washer to catch the back edge of the rail is one trick.....but I have read of people virtually being launched through the windscreen in the event of a crash (and this does happen, maybe not your fault but reality) as the seat belt buckles are attached to the rails, therefore if rails let go.....there's nothing stopping your face having a liaison with the windscreen!!