The company I work for supplies OEM instrument clusters to Toyota, Honda, Hyundai, and the big 3. Unfortunately we did not make this meter for GM. However, I will do some checking to see if we have any information on these meters (we're always looking at our competator's clusters). I do know if you use a pink colored filter over a blue/green VFD, it will change the color appearance to white. The blue/green VFD's are cheaper than the white ones. You may be able to use the bluish/green color that is in front of the VFD along with another filter color to achieve the blue color you want or as said before, cut out the VFD window and glue in the filter that gives you the color you want.