The Hookers will give you the best performance hands down,but 450+ for headers is insane.If I ever come up with the tools/funds to start a little side business it would be to make a LT/ST header for the slant that is reasonably priced(around 250.00) The long tubes would be a copy of the hookers and the shorties would be similar to the hyper pak manifolds but made with steel tube.
Oh ya and THICK mounting flanges for the head side AND collector side of the headers.
