The factory air filter box remains.
The Filter and box Cover are replaced.
The air induction tube, attaches to the mass air flow sensor using a synthetic type of tubing that is supplied with the kit and two hose clamps. It is polished aluminum and connects back up to the throttle body, using the existing rubber throttle tube that is used with the air induction box. No bracket needed. Also, there is a piece of small rubber tubing that needs to be cut and run between the tube and the rocker arm cover in the rear for PCV.

The factory box has the mass air flow sensor as part of it's design so there is no need to do anything there.

Throaty? Well not on the intake; The exhaust is somewhat, but not V8. The Air intake seems to give the motor a smoother start when I step on the gas.
Somewhere I remember hearing a sound file on the exhaust.