Im in the process of converting my bumper from the standard to an M version and i have 2 Front Air Duct Filling Inserts. This is probably a stupid question but what exactly does it do and where abouts does it fit
Yeah ive got the Brake ducts but i also have filling inserts product number 51718044700 and 51718044699 and im not sure what there for or what to do with them
The filling inserts are the bits of plastic at the back of the air ducts. They block out most of the hole. Probably to stop any large bits of debris going through it.
