You only need the converter if your fitting JDM ones, a UK STI set of clocks will go straight in.
Changing the colour is a bit more time, and alot of patience. I should post my write up really.
Heres whats envolved.
Replace the bulbs with LEDs, i tried about 10 sets before I found some to fit right.
Then, the hard bit. Cut strips of sandpaper, feed under the faces, and rub for ever...
The below picture if from my test set, I removed the faces to cheat, but you cant take
the faces or the needles off if you want a working set!
You have to remove the black backing, and the green backing under that. This is what gives them the green look, so just changing the bulbs isnt enough.
I then used a white board marker to carefully colour the dials, as I wanted them to look red during the day too, not just at night. Again, after testing I found that the white board marker let more light through than a standard marker.