That will be my first mod. e90 did not have holes in the body, I am assuming f30 will be the same. Just warm it up with a hair dryer, and slide some floss underneath it to get it loose.
"... but really, you just gotta ... you just gotta turn it all off, boys! You gotta turn it all off and you gotta wreck some tires! That's what M cars are all about, isn't it?"
-Chris Harris on the f80 M3