I have what I believe to be a set of A-Body tube auto headers. The headers I have are 1 7/8" primary & 3.5" collector, individual slip together tubes w/slip on collectors, complete underchassis design, they have adapter plates that bolt to the head...

First and foremost, can someone confirm the brand please? Pics attached.

Second, are the tube auto headers still being produced? How much are they when purchased new?

How do they compare in fit/quality to the TTi W2 headers?

Thank you for your help.