I recently transformed my Nice Girl 2006 Z4MR into a Wild Girl by adding some KWv3's, the powerchip software, and a corner balancing.
The factory setup was a pretty good canyon dancer, but now it's like living with a nymphomaniac asphalt gymnast: it can (and will) do nearly anything you can imagine, all day long...
I highly recommend a corner balancing for anyone with coilovers. Made a huge difference.
See the full thread
here