Compare the front bumper 03 to 04 the 04 has more clearance for the CAI, if you look inside the bumper where the CAI filter is locate you can easily see the filter there, I am wonder if that will cause higher risk to hydrolock due to it wide clearance in the bumper. But on the good side, I think if will give the car few more hp than the 03 model because the air is directly blows on the filter which similar to ram air system on the TransAm 