[sbce90]

I have an e90 LCI with factory Msport body kit. I was interested in the oem BMW Performance rear diffuser ( 51192153917 i think) and was wondering whether it will fit straight in to my Msport rear bumper. My BMW dealership told me that there was a difference between the Msport factory kit and the M-aerokit for e90s and that the diffuser would only be compatible with the aerokit bumper. Apparently the aerokit is a retrofit kit unlike the factory msport. To me, both look the same visually, so maybe there is a difference underneath or with dimensions? If someone could clear this up for me it would be really helpful.

[sbce90]

I know there are different styles for the e92 coupe, and the same question has been asked for that before. I am asking about the e90 (lci) sedans.

[shragon]

from what i understand, something needs to be trimmed on the m-sport/m-technic rear bumper for the performance diffuser to fit.

there's plenty of people in the photo forum that have done this mod.

hopefully somebody with more info will chime in.

[sbce90]

yeh ive seen the thread with loads of pics. fingers crossed someone will come across this

[ss134]

The BMW performance diffuser definately fits the LCI M Sport stock rear - but as has already been mentioned some trimming is requiered.

This thread may be useful and you can PM the vendors for more info:

http://www.e90post.com/forums/showth...mance+diffuser

[sbce90]

Originally Posted by ss134

The BMW performance diffuser definately fits the LCI M Sport stock rear - but as has already been mentioned some trimming is requiered.

This thread may be useful and you can PM the vendors for more info:

http://www.e90post.com/forums/showth...mance+diffuser

thanks! there is just soo much terminology out there it can get confusing.