Ya more fuel without more power (burning it) just means more fuel returned to the tank causing heat. Itís all a gimmick and in my opinion is not needed. As for the sump-its also take it or leave it. It certainly doesnít hurt. But the condition in which starvation happens when the tank is running low is rare. I make it a point to fill at half a tank. Donít forget that fuel treatment too.
🤘 Kennedy fuel system support hardware, CCM front Diff Drop, some LEDs to make night into day, got some big ol 20's and wide ass tires and a nice display to show me what's up under the hood- 2012GMC2500CCSB