I searched, but couldn't find any info. I am thinking about putting a spoiler on my 545. While I like the BMW accessory spoiler, I actually like the M5 version better because it's a little more subtle.

Does anyone know how / where / how much to put one on my car? I don't want a bunch of M5 accessories, just going to do a spoiler and tint the windows when she comes back from ED.

Thanks!