[PetieD 7]

I am wondering if the LCI M550 rear diffuser cover can fit the pre-LCI models (M550, 540i and 530i) without any issues.

[Mach550]

From this picture is looks like you need the entire bumper assembly replaced since they moved the reflectors up into the bumper. I just removed mine to swap my diffuser to the M-Performance version.












actually nevermind, this is the m-sport one and it looks like it'd swap in no problem other than changing the next layer underneath which you do need to remove the entire bumper panel for. Can see this in my post https://g30.bimmerpost.com/forums/sh...8&postcount=54

[PetieD 7]

Originally Posted by Mach550

From this picture is looks like you need the entire bumper assembly replaced since they moved the reflectors up into the bumper. I just removed mine to swap my diffuser to the M-Performance version.












actually nevermind, this is the m-sport one and it looks like it'd swap in no problem other than changing the next layer underneath which you do need to remove the entire bumper panel for. Can see this in my post https://g30.bimmerpost.com/forums/sh...8;postcount=54

I did review the pictures for the second time, and it looks like it's one piece in which the lower portion of the diffuser cover was molded into tiny diffuser fins. However, I could be wrong though.