I forgot to take pics but everything on the Airaid is larger then the K&N. Installation was very straight forward. As with the K&N the lower half of the stock airbox is still there but the heat shield is much better. I decide to go with a dry filter instead of oiled and I got a filter sock as well. When I took the K&N out my lower airbox was pretty clean. There was a little bit of dried mud but not as much as one would expect with an open filter. Truck has not been retuned. I'm letting the PCM make changes to the fuel trims as it needs. sent from ...... I don't know where I am.