I cut a hole in the forward drivers side corner of the box slightly smaller than the hose. It was more in the side of the box than the bottom. First put the hose in the brake duct, pulled the excess up through the air box as I pushed it down into position then trimmed the excess from inside the box and cleaned it out before putting the filter back in. With the effort I used in pushing the hose into the duct and air box. I didn't see a need for anything else to secure it.