Pretty much. I tend to revisit ideas after a while in order to refine my original concept. In this case it is about redirecting the 3" "ram air" tube toward the end of the 4" intake pipe. The removal of the filter and addition of the smooth radius of the velocity stack reduces the potential restriction and increases flow (because the air moving inside the filter must turn 90* to go down the pipe). The velocity stack should also help stabilize the air moving across the MAF (even though there is a large cell MAF screen in there to reduce turbulence). In short, I am presenting the engine with a mass of cold air.