Does anyone definitively know if the M Performance Exhaust comes with the rear diffuser. In all the pictures by BMW the diffuser is shown. The description of the exhaust even mentions the diffuser as being a great partner with the optional exhaust tips (which we know aren't exactly optional). But there is no clear statement that the diffuser is included. BTW, when I look for a BMW rear diffuser in the M Performance parts category, none is listed. So I'm guessing the diffuser probably is included, but I don't know for sure. I'd sure like to know before I order the darn thing. If anybody knows and can clue me in, it would be appreciated.
