Headers for Vortec 5.7

[carl722]

Does anyone have headers on their vortec 5.7? I want to find a set that will connect right to my exhaust pipes that were connected to the manifolds. According to the desktop dyno this would be worth over 30 hp to replace the manifolds with headers. I don't have the O2 sensors in the manifold they are in the pipes on both sides of the cats. The cam I have with the headers should push me over 474 lb/ft and 400 hp. That should be able to make a heavy Z-71 put a Hemi Ram in the dirt after I get my dynotuned program put in the PCM.