This is a New/Never Used stock diffuser that comes with MTech/MSport Rear Bumper for NA E92 with single sided exhaust.
>> NOTE: This Fits Aftermarket (Quality Reps Such As Sold By JGMods, Etc) or OEM E92 MTech Bumper <<
> Could also be used for quad exhaust systems by simply cutting an exhaust tip scallop on PS same as on DS, like on the car in this thread:
http://www.e90post.com/forums/showthread.php?t=258250
SOLD - Thanx!
It came with my bumper originally, but I used aftermarket for quad exhaust at first - just upgraded to an iS/Sport Diffuser.