Nope. You still got it wrong.
The piping completely eliminates all of the stock plumbing. Including that 180 degree that feeds the front turbo.
The Airaid, or even the K&N, or any other similar setup, simply bolts onto the stock plumbing.
This set up, uses two completely separate pipes, to feed each turbo individually.
The diameter of this custom setup, is a full 3" the entire run up to the turbo inlet(s).
Much larger than the factory diameter's.
Additionally, the "long" tube you are looking at, does NOT go under the motor as you are believing.
It travels (kind of where the 180 used to be) on TOP of, or rather NEXT TO (the top of the driver's side of the motor) and drops downwards to feed the rear turbo. This comes off of the top flange of the filter.
That small, 90 degree drop comes off of the bottom flange of the filter, and proceeds directly to the front turbo.
Do you get it now?
That black, corrugated tubing that pipes in from the bottom part of the heat shield, is just yet another, alternative location for/of which cold air will feed the plumbing.
I plan on routing that from the bottom of the heat shield, and placing the other end down in the spot on the lower grille, where the ACC Radar Sensor is located for those that have ACC.
Since I don't have ACC, I should be able to manage placing it there.
Hope that explanation helps you out a lil bit more there Lord Tubby Ton.