Hello everyone, just in need of some urgent help here. I'm in the process of creating my own undertail for my 01 f4i. Long story short I forgot to write down the width of my tail light and I am going to cut my material tonight at work if possible. Anyway, could anyone supply me with a dimension of how wide the rear tail light is? (The black plastic piece on the rear) if you have calipers use them if not anyone who can read a scale would do. I have reference lines drawn but they're not exact, so if anyone can chime in before I get out of work tonight and save me a day of fabrication time id greatly appreciate it! Thanks I'm advance!

 

I have an aftermarket undertail so I'm not sure about the black plastic piece that the tail light comes out of, I don't have access to measure. But my tail light itself is 5 9/16" wide.