I moved the oring from the old to the new, I have a new (from dealer) manifold gasket, I just rechecked, retourqe the stuff, took it for a ride and still the leak.. I think I'll try to replace the CAT gasket ring thing. Also, it doesn't look like the header matches up to the cat very well.. its a wee off any thoughts? (i.e. I can see the oring in the opening)

-Rg