Love your car as well! I have tinted the windows after these pictures were taken, so good taste!
But do you have Night Vision? If not, why don't you get the black highgloss kidneys?
The exhaust pipes are the original from 550i M-Sport (therefore satin chrome). But it caused a bit of problems, due to the luggage floor is different on BMW 530d / 550i. We therefore had to change many extra parts, but luckily to a not so high price...
I include to low-quality photoes so that you can see where we placed the exhaust system