Originally posted by Robert
It fit without any modifications. I ordered it through Performance Products 6/00 when they had a 15% off coupon. They don't list it for a '98 and up though but I am certain that someone here with a '98 has put one on thier SOHC. After sending them pictures of my stock intake they saw that their '98 looked exactly like my '97. If I remember correctly when I ordered it, I though there was a note at the bottom that said something like "for all 4.0L except round cone type factory air-boxes". Since mine was technically a 4.0L and I had the square box I ordered it. It fit like it was made for it so I assume that it was. Maybe K&N never tested it on later versions of the SOHC or maybe Ford changed the MAF sensor shape. Send me a reminder with your e-mail address and I'll send you some pictures of mine for you to compare to. It is supposed to cool down this weekend to the lower 100s and since it is time to service my filter I could get some pictures of it in various stages of assembly. Depending on Performance Products return policy, you might want to try ordering one for a '97 SOHC by going to the following link: Dead Link Removed As long as they will take it back if it doesn't work I would try it. They are running another 15% off sale through September 20 so you should be able to get it for less than $150.