for some seems that the gotts mod works when you are at high rpm and you want to be sure you are receiving all the air that you can..... since i'm using it mostly for city/highway driving, mostly driving under 2000 rpm, i dont really see a difference using it. but i did had a beer while doing it.
2005 F150 SuperCrew Lariat 5.4L V8 Triton 4x2
I survived the change of broken spark plugs in the F150....
But my transmission didn't make it to 75000 miles....