I'll try to get a picture, but one of the air tubes from the intake (if you are standing in front of the car looking at the engine it's the right side) is faded a lot more than the other one. It's practically grey while the other one is pretty black. The car is always garaged and has about 20k miles, 2008 ACR. Anything to worry about? I searched, but didn't find anything. thx.