Headers..........in California?

I've always known there were no smog legal headers in California,or so I thought. LGAFF posted a set of Callaway Super Natural headers he found on eBay. So I did some digging,got in my touch with Callaway and they are in fact legal in California,so I bought them. They have an EO number and are registered with C.A.R.B. hi he odd thing here is a hey have an AC logo and a GM part number. Now before I go to the trouble of putting them on the car I will make an appointment with it ya smog referee and try and get some paper work to show the next time I have the car smogged there won't be a problem. My plans are to look into the B&B Fusion cat back setup. Thanks again Lee!