OK, so I just got off the phone with Cobb and they are showing on their screens that the black is available under the 370Z header. I am like the OP and black doesn't show and appears to be out of stock aka not available. But if you pull up the G37 header, you can order black ones from there as they are the same stock number and will fit. So if you want black, order the G37 ones, they are what you are looking for. This came directly from Cobb sales/tech support.
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