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The handling is different because of the large amounts of lift the truck creates when the air dam is not there. Because of how the front of the truck is, all the air that doesn’t get pushed over the bumper ends up compressing and being shoved under the truck. My air dam basically takes an approximately 8” by 68” section of that air that was going to go under the truck and moves most of it around the sides of the truck. It is especially noticeable on the rear axle, since there is not much weight there unloaded. Plus I have my air dam farther back than would be ideal for reducing front axle lift, according to Hucho’s graphs. The truck feels more planted in the turns with the air dam, which is really the only time you can “feel” the difference, though the truck is quieter with the air dam since it is deflecting large amounts of the air around the tires.
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