Are there any replacement fog lights with chrome housing that I can purchase to be a direct fit on my'05 clk500? The 06'-09' CLK's have chrome housings around the fog lights, I want to go for that look.

The chrome trim ring is actually part of the plastic "grille" insert in the bumper. I don't believe the inserts are interchangeable - I am fairly sure the bumper design changed.

I thought it was the actual fog lights that had the chrome housing. I see what you're talking about now, I found this on eBay and it looks like it wouldn't fit without a custom modification.

http://www.ebay.com/itm/Mercedes-W209-CLK-Class-Genuine-Front-Bumper-Right-Mesh-Grille-CLK350-CLK550/281398664209?_trksid=p2045573.c100033.m2042&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20131017132637%26meid%3D14bde7b1542646458aa47995884d885e%26pid%3D100033%26rk%3D4%26rkt%3D4%26sd%3D181709557670

Yep, when I did my LED DRL project, I removed the chrome trim ring from the black plastic grille panel before covering it with wire mesh:

https://mbworld.org/forums/clk-class...t-project.html

Nice! Thanks for sharing.