You can find these here. Just click on the link at the top that says "Crossfire Shop" and then "Exterior". You will see the Diffusers about half way down the page. I think TVT and someone else on the forum can order them for you cheaper, but if no luck, then here is the manufacturer. They are more than double the cost of the MOPAR ones.

http://www.ctd-germany.com/shops/cro...op_e/index.php