the filter on the cluster gauges is part of the actual gauge face, you have to use rubbing alcohol on the back of each one, then light will shine through in whatever color you use. a lot of people do that so they can have 100% white numbers and such. colors usually aren't affected by the filter.
if you want to put in different faces though, then there is no point in doing that since different faces sit on top of the existing faces and are lit on their own.