I took a little visit to the local dealership to look at the '04 WRX's in order to get an idea of the styling of the STi. Particularly I won't to see if the '03 scoop would be a direct replacement for the '04 scoop. Nope, not evn close. The cut-out in the hood is bigger in both directions. I do, however, assume the cut-out on the '04 WRX is the same as the STi. This is good for those looking to bring the STi scoop down a notch. The '04 WRX scoop seems to have just as big of an opening as the '03 Sti and replica scoops.