Well, I thought that I would add to this old-ass thread rather than making a whole new one, try to consolidate this information in one place instead of spread all over the place. I installed JDM cluster on my s13 recently, and the lighting was dimmer and looked a little pinkish, so I thought I would try some wide-angle LED bulb-replacements. I love the way VW gauges look, so I tried blue first.
Here is how the cluster looked originally:
I first replaced all of the bulbs with the blue LEDs, and it was just too much blue. Also, the odometer and the legends for the warning lamps were pretty hard to read. Another side effect that I hadn't considered before is that my redline completely disappeared. I was hoping that it would be brighter than the stock bulbs, because they were pretty dim, but unfortunately, they are about exactly the same brightness.
So I changed the odometer and warning lamp legend lights back to the bulbs for now.
Next time I order some LEDs, I am going to try white, according to their data sheet, they are about 50% brighter than the blue ones. I'll post results again when I get them. I also plan on replacing the warning lamps with LEDs as well.