Changing color of Valenti taillights
 

Alright so I like the white on white look here
http://www.jgmods.com/media/catalog/...c/r/cr-2_1.jpg

Now can you open them up just as if you are opening your headlights to paint the housing, and take out that specific white piece and paint it whatever color you desired?

It is plastic welded shut, so short answer is no. You need to look in the DIY section for cutting open taillights. Then, you would need to paint it a translucent color. Because if you paint it a solid color, the light won't be able to shine through.