If 2k for manifold its should be made from 304 thicker s.steel sir...i also use 304 and never use the thin s.steel for manifold...and i dont think manifold u use now is same like the ebays...its totally different..,flange,runner,finishing..:hmmmm:2k was just for the manifold alone. In total i paid 4k, yes, including downpipe, piping, IC, BOV. Yes, so I definitely did not get what I paid for...