I was just thinking.
What if instead of a "Y" you put a 90˚? The engine will still be able to bring in air and if you did get going 200+ mph you would get a slight amount of boost.
If I were doing that project on a 5.4 I would cut the intake to allow the "Y" after the stock fender snorkel. That way the preferred source of airflow will be from the bumper instead of the fender. The fender would still be a source, just not as significant as the front. We also have to keep in mind that we can use a 6" inlet but the air is still having to squeeze through the rest of the intake, filter and throttle body. I remember that changes the properties of the fluid but I cant specifically remember how at the moment.
The gotts mod eliminates the largest source of airway restriction. Now you have to open up anything that has less than a 3 inch diameter...so I guess that would be the throttle body which I think is 75 mm to an 80mm. We're starting to get expensive now.
But really this is all a mute point if you aren't either hauling buns down the highway or stuck in stop and go traffic all the time.
