The things I customized so far are; Blacked out tail lights, side view mirror blinkers and front side reflectors. Strut Grille Package/custom painted to match car, 20" Lowenhart LSR wheels/custom painted to match car, Black powder coated brakes with chrome screws, 30% tint on windows, and Black suede headliner. Here are a few Before and After pictures.

I have made a few more changes to my "Black Beast"
I added a Brabus trunk lid spoiler:

I added a Euro/Command Unit. This allows me to play DVD's on my system. I like it because I can play music and watch the video at the same time.

I added a custom sound system thanks to Bill of Precision Auto Stereo in Hayward, California. Check out his work here: http://www.myspace.com/precisionautostereo