I was strolling through eBay and came across these. I told the guy that those are not AS&Ms but RK Sport headers. I know this to be a fact because AS&M have a different flange style as well as D-shaped primaries, as this is the main way you can tell the difference between the two designs. He responded with "I purchased these headers myself directly from AS&M in 2003. Though they do not have AS&M written on them but I am sure thats what they are. Thanks."

Am I wrong or is this guy full of BS?

 

I'd think you're right, but I don't have either the RK Sports or the AS&Ms.

Aren't the AS&Ms stainless also?

 

Those are RK-sport headers, they have the more round openings where the AS&M's have d-shaped openings. They are still about the same headers though, I have the RK's and the work great.

 

good job, you saved the world again.