Taking the foam filler out allows the ring to snug more tightly to the lamp; however, there is still a bit more gap than needed. All things considered, an improvement, especially when mated with similar headlight ring.
I purchased three sets of these Chinese junk. Why 3 you ask? Well because the first two, the chrome was starting to peel. So when I returned the second set I asked the online sales person to please open the package and physically look at the past out of the package. I gave him permission to open it and check it out, he said I'll have to call you back; which to my surprise he did and his answer was"they are perfect". I said please send me the ones you just checked, I guess he did. When they arrived I saw the opened package, so I was happy until i took them out of the plastic and the looked exactly like the other two chinese crap, so back they went. Huge waste of time, don't bother just go to HD and get them.