I just installed a TRD header for my EFI swapped 22R, and I LOVE it. I payed out the arse for it, even with my employee discount at the dealership, but it fits great, has a ceramic coating on it that I've yet to discolor and the 02 sensor port is in the intermediate pipe so it samples all 4 cylinders. I finished it off with a high-flow Random Technology catalytic converter, 2.25" piping and a flowmaster muffler. I've got too much money tied up in an exhaust system, but it is exactly what I wanted. If you don't mind the extra cost, the TRD header is the way to go. Pics available on request.
HTH
Ryan
