What free-flow filter is a good choice? and how about the deck plate mod? I just haven't seen it done on this truck yet. I'm scared to screw it up, but willing to give it a shot if people say it'll help.
the deckplate mod gave 6hp or so on the 3.4, so chances are it will give more on the 4.0...hard to say though, the intake might be designed better on the 4.0. from what i've heard the amsoil filter is better than the k&n