Color of the Sport Brake Calipers

[nis350]

I like the sport brakes (early model) quite a bit in both performance and appearance for DD purpose. However, there is one thing that I am debating to change is to have a brighter color calipers instead of dark gray which is subtle and classy.

What do you guys think about changing it to a brighter color which might make the car a bit ricey?

Also, for those of you who have changed the color, how do you prep that smooth surface to get the paint to stay on? I read that you can powdercoat or use brush on products like G2.

Thx.