I'd wait for the DC sports header
both the trial and TRD
headers are jdm (japanese domestic market) only. you'll have to ship them to you and the cost for either of them ranges from 800 to 900 dollars (in my opinion--not worth it).
the dc motorsports header promises similar (maybe even better) gains than both the trial and TRD
headers for a cost of 300 to 400 dollars.
same Performance for half the price = much better deal, imo. wait to see how dc does