I am looking into getting one of these two hi-flow induction setups but don't really know the difference between the two, can anyone help a noob out here? I see that one has a elbow that extends down a little further, one requires tuning and one doesn't. Basically I want whichever will give the greatest gains. Tuning isn't an issue either. I'm having that done next week anyway and want to dyno before and after the induction setup for everyone to see the difference.