Stay away from any pedal commander type product. This truck doesnt need it. It may be the truck is still learning after the tune. At best take it to a dealer and explain the problem. They may have a better idea than keyboard mechanics. But avoid the throttle improvement scam. I had a pedal...
25 here. I got the tune with 1k on the clock. 9k total now. Avg 18.7 since tune. Roadtrip is right at 20ish. I live in Pa with elevation changes. So considering EPA says what 16 to 17. I'm happy.