2007 Dodge Nitro stock air filter box

I havnt replaced one on this model, but ALL are held on by rubber mounts on the sides, or mounted to the inner fender, nuts can be located on the bottom inside the wheel wells, or tucked up in front of the well. Remove the filter element, and the duct, poke around and you will find it. I will tell you, MANY performance issues arise when the MAF is damaged by oil if you are going to a wet air filter system. I advise you leave the factory unit intact!