Big Block Suspension Question

I know its a bit off the actual topic but,
Everyone mentions Headers when speaking of weight reduction. I swear the TTI's I currently have are probably every bit as heavy as the manifolds I took off. Manifolds with 3' of pipe MIGHT be a different story, but I wouldn't put money on that either. A set of Hedmans or something could be a fair weight reduction though, I don't know.