03 cobra cop's

ok i put a dohc motor in my 00 gt stang a while back. im puttin a 98 style cobra intake on it. there is a chance i can get a stock supercharger or maybe a paxton in the near future. just depends which way my buddy goes. anyways i found an 03 injector harness for under 200 bucks. id really like to keep my computer setup with the cop's that way i dont have to get the 98 computer flashed to work seeing how i hate the extended harness i have made from the gt. id really like the stock look. and this 03 harness i think might do the trick seeing how everything is already extended the way it should be. is this a good way to go. also i have 2 sets of cop's stock gt and stock navigator cop's. what im wondering here is will either work just plug and play. i no with the gt harness i would have had to switch polarity for the navigator cops. will they work or am i looking for 03 04 cobra cop's???