[Joe Wicked]

I had an 03 and I had problems with the stock air intake as well. When it was wet it wouldn't run quite as well. By removing the rubber boot from the fender well that goes to the the Airbox, it ran much better. I also changed the plugs early. I tended to do it at 30K just to prevent any issues. Do make sure they put anti seize on at the dealership. Most times they do not, they do the same as Ford did originally.