No kidding, I thought I was going crazy! I know I did not hear a whistle when I picked up my 2010 but it is there now and it annoys the crap out of me. I have the OEM Ford low profile deflector. I was wondering if you guys with WeatherTech might have a picture to show me what it looks like as I am very picky. I love the look of the Ford one. Also you guys with the film protectors, does it look like you have a piece of plastic on your paint? can you post some pictures? I have the Lava Red Harley Davidson Edition and just wouldn't want it to look like I put plastic wrap on my truck