Divenut, where in Illinois are you? The outrageous cost of shipping a pair of headers back and forth is pretty much what forced me to get out of the high temp ceramics business, but I can still do them and we're not that far apart.
If you're interested in a flat black or silver Cerakote high temp coating, I've got some on hand right now -- give me a call and we can go over the details. I hate to see anybody try some untested product on their car.
