are these ebay exhaust manifolds? links inside

[foxracing4500]

I am going through the stages of easy HP gains right now I am at Stage 1 Step 8: Exhaust Manifold. I was kinda interested in buying alot of my parts from the classifields, not that I have a problem with new but I could easily clean up a used part with the tools I have

so

first one,
Tubular manifold

2nd
DNP Style Manifold - DSM Classifieds

 

[11Banger]

I would assume so, since no manufacturer is listen in the thread

 

[supermario300hp]

ebay garbage.dont waste your time i bought one just like that and it cracked. save your money and buy once. Just my .02