Compression Ignition Addict
Join Date: Nov 2011
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There's really only one person advertising a MPG tune and it's total horse crap. You'll spend $300 on green tunes and all you'll get is a feel good lie-o-meter reading. Hand calculated it's worse than stock H&S tunes. Been there, done that. Not to mention the turbo oscillation and a trans that's trying to break itself. Avoid the Green Tunes.
H&S tuner is the most popular on the forums and it works well, but expecting huge mileage gains is pretty optimistic. You'll see 1-2mpg if you see anything. Deleted you'll get a little more, but not much and you already said you don't want to go that route.
The Spartan is another popular tuner, sorry, I don't have any direct experience with it. But that's about it for real tuners and the '11+ 6.7
2012 F350, 6.7L Diesel, 4x4, SRW, Crew Cab, Short Box, Loaded, Ingot Silver
Detroit Truetrac, Icon leveling springs, steering damper mounts, King reservoir shocks and steering damper, Ultra Predator 22x10 and Nitto Terra 325/50R22 (35"s), H&S Minimaxx & Gearhead, aFe 5" SS w/ muffler, Leer XL, LineX, Titan 50gal, Airlift bags and wireless.
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