Originally Posted by
carbonmetallic
saw that you have the K&N CAI on the expedition, does it cause a loud drone sound when accelerating? I had one of mine and got K&N to buy it back, couldnt stand the drone it made, I couldnt even hear myself think, or much less hear the radio when I was on the freeway.
It's not bad unless it's wide open throttle then is rattles my dash a little and is a little loud, but under normal driving conditions it's not bad at all...just makes it sound more beefy.