JSUMoose1489, I am sure that the dyno plot you linked to was not put up on their site to help them sell headers. I highly doubt that Chris is nervous that your car with a set of headers on it will perform like a turbo. He was mearly explaining that they wont warranty the turbo kit if you use headers other than theirs (and letting some people know about the build quality of the headers in this group buy)

"Moore has also accused the American people of being the stupidest, most naive people on the face of the Earth. And after last weekend, he's got the box office numbers to prove it!"