What kind of headers are these?

[blackgn231]

 

[wiseman]

I am not 100% sure, but looks like a set of the Chinese headers that I initially purchased a couple years back.

That's my 1st guess from seeing your pictures.

 

[fatride]

X2

 

[wiseman]

The cross pipe didn't fit well. which caused a leak and I had to modify the one of the bolt locations on the flange to make them work.
I took them off and replaced them with some TA Performance headers after I got my car running the way I wanted it to.

 

[fatride]

Then defiantly the ebay Chinese knockoffs.