Renato, you read my mind. I have a rockblocker (3m clear bra) on my STi and love it. You can only tell it is there from a few feet, and that is only when it is dirty. I will never put a regular bra on a car just because all they do is trap dirt and scratch the paint.
I'm debating on getting on for our civic, just to save a little money. I did it on the STi because the front end is so prone to chips.
http://www.rockblocker.net/store/37701.htm
Here are pics of it on my crystal gray STi
http://www.iwsti.com/forums/showpost...22&postcount=5