Hi Trev,
I bought a set from southern rods. They are all stainless, polished and cost $190.00 although I think know they may be closer to 250.00. It came with flanges, gaskets and bolts.
I've seen others for around 350.00 or so. Anyway you cut it, for me it was money well spent as they will last forever and have the look.
If you can come across a set of exhaust manifolds from an earlier corvette say around mid 60's the high performance engines used an exhaust manifold with a center exit of 2-1/2". These manifolds have excellent clearance abilities and I perfer them over any block hugger header on the market. The block hugger's are a copy of this technology.
Dave
