No thanks, not a fan of how spaced out quad exhausts are like this on the E92.
I don't think anything out there looks better than a BMW OEM performance diffuser with some nice fat dual tips.
An OEM M3 rear with diffuser is the best E92 setup but I would never do it on my 328. Not trying to "pose" as some would say.
It certainly would be unique if you did this and cool for sure, but I wouldn't. Save the money for a slek lip