The X and the horizontal lines are actually Electrical tape.
All i can say is that I was bored at work one day. The horizontal lines are supposed to look like air inlets, while the X was rally car inspired...
I plan to make "fake air inlets" for aesthetic purposes whenever i get the time. The bumper looks so plain with nothing on it.
I have also considered covering parts of the bumper with stickers but thought it would be tacky. As if gold wheels and a big pointless X on my bumper aren't.
Order some golf shoes, otherwise we might never make it out of this place alive.