so i got the ACS rear 3 peice spoiler on the 5. i got 2 different color acs tag stickers.. the black one and the silver one. i have an orient blue color car. should i go for the silver one so there's contrast or the black one to keep the black and blue theme?

silver

I vote black....

go with black. Silver would look good too but the lighter contrast might attract thieves where the black will blend better. I think the beauty of the ACS add ons is that they flow with the lines of the car, kinda stealth. You can't see my black ACS badge on my lip unless you're looking for it, that's a good thing I think.

You need to get those ACS front splitters for your M5 bumper next time you have baller dollars to spend:) I need some extra income.