Tuned my 2013 Ram 1500 5.7 with Diablosport

[RichardRowe]

Hey all,

I have a question, and I need to see if it’s placebo at work or if the mods on my truck are really chewing through gas, as I think they are.
2013 Ram 1500 5.7 275/60/20 Wrangler Authority tires K&N CAI Diablosport Canned 91 Tune 1-2 Shift 5950 rpms 2-3 shift rpms Throttle booster at 15% MDS On (turned on because I thought it contributed to the fuel lost)
It just seems like since I got this done, Teena is drinking gas like she’s dying of thirst (quarter tank in a day).
I filled up at Cosco (with 91) and the fuel range said 490 miles on a full tank. Drove two days ago and yesterday (total of around 100 miles) and I’m now she’s at 3/4 tank with 330 miles of range

Thoughts?

Would a CAI installed wrong be the source of the fuel consumption? I’ll admit there’s some Hemi-foot going on, but I’ve been trying to drive conservatively.
Or is that gas consumption normal and I’m seeing things that aren’t there? I know who buys a truck, (let alone TUNES a truck) if they’re worried about gas, but there are levels to it.
Little more info about the drive: Drove from LA to Long Beach Friday around 2pm (about an hour and 10 in traffic) Drove around LB for a bit. Saturday I drove from Long Beach to LAX around 6:30 at night (46 miles round trip).
I’m gonna run out this tank, remove the tune, then fill up again and see if there is a difference. Fingers crossed it’s negligible.

[mikel]

the 13 Ram 5.7 doesn't use a MAF, so the CAI shouldn't have much impact on fuel consumption in theory.
are the tires new as well? Taller than stock? Is the speedo correct?

The only place the tune might have an effect here is if you are heavy part throttle driving as it likely gets into power enrichment much quicker with the tune than it did before, which is why those transitions to more throttle feel so much better.