I'm looking for a thread I saw in the last few months on a finned diff cover for the Z. I searched this section of the forum, and can't seem to find the one I was thinking about. It's not the one listed below, or the one on the GTM diff cooler from 2009-2011.
Nismo finner diff cover
I thought I remembered reading one that indicated that Nismo's had the finned housing from the factory, but I know my 2012 doesn't. Any pics, ideas or info? Not interested in installing a diff cooler or OS Giken rear at this time, just fishing for info.
Thanks, Pete