^ What he said. They raised their price a little since then. It's $398 shipped now. Some of us including myself have bought it from this seller and it's great!
Here's the link of our review and picture's of the bumper.
http://www.e90post.com/forums/showthread.php?t=735091
And this link to that eBay seller.
http://www.ebay.com/itm/E90-M3-STYLE...item3a785bf5a7