From Sean previous post
The OEM slats on the 55 are locked into place with clips - no double sided tape in site.
The clips and fixings are fiddly at best, but very secure once in place.
I'd probably go with tape for aftermarket stuff, unless they've bothered to replicate the exact shape of the original item...
I agree with the guy that wrote that . However, that's the star and the grille slats, not the big "fins", which as stated before are an integral part of the bumper cover, with separate black inserts over them on AMG models. There are also aftermarket inserts available - in chrome for instance - which it looks like those are what OP has installed.From Durkatlon
The star and the grill slats are all one piece which is permanently attached to the bumper cover. By permanent I mean that there is no way to properly remove it from the bumper without breaking off some of the tabs that are used for the attachment.