Under the description it lists that there is an "Air Diversion Path Built-In - Directs Airflow To Intake". I've seen the differences dyno results with the bumper cover on and off (Gen 3 intake), is this air diversion path enough to bring the results closer to those with no bumper cover?

Mine wasn't as good. One of the ear pieces, the pieces that are on the sides, didn't match up at all. So that side consistently popped out every time I drive it. It was also so heavy that the under shroud bowed and I got a big hole in it now from rubbing the ground. Did I care? Heck no it still looked awesome! But for the price I paid I wish it would have fit better. It met a deer last year so it's long gone anyway pull the trigger man, I miss that bumper so much. I recomend the metal under shroud from z1 to support the weight though. Also maybe a thin piece of aluminum with notches to help the factory clips grab. Other than that no complaints!

Old post, but the answer is yes. That is what it was designed to do.