There is another DIY somewhere about this, I saw it yesterday. On the R33 S1, cover the letters with masking tape, then spray the rest of the panel the colour of the car. Then insert LEDs behind each letter so that when it is turned on, the letters glow. You can then hook it up to either a switch, your lights, or your brake light. I was thinking about doing this, and was going to hook it up to my lights so that its on all the time during at night, and to the brakes so its on sometimes during the day. Let people know what your rolling in!!