I replaced my whole intake with a K&N Typhoon cold air and when I took my car in to have it checked out . The service manager told me that replacing the whole thing will not void my warranty . He also mentioned that he had done the same thing to his new F 150 .Yay 09s. So you're just replacing your factory filter? Did they say SRIs and CAIs void the warranty?
Why would I want to tell him that ? He's the 1 that told me it wouldn't hurt my warranty at all. And he helps me out on some of my other Ford's when I bring them in to have them serviced .^ tell that manager to take a hike... and when your door falls off, ford better pay for it under warranty. because an Intake cannot void the warranty, except if you hydrolock your motor, then your up the creak without a paddle.