x2 on the FICM programer, my '04 dually came with an edge evo and even on economy and tow tune the lag was bad and I could set off the egt alarm on a WOT run empty. I got the FICM programer rather than just using my evo so I could try all the programs and also because it displays more info. BIG diff in the giddyup and go!! Had it on A40 for awhile and noticed lower EGT's on WOT runs. Got it on A80 now just to try it, still playin around with it Truck doesn't get driven to much so not sure about mileage. Get the EGT probe with it if you dont have one already, and watch your coolant and oil temp differential so you'll know if you need to do the oil cooler when you do your EGR delete.
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Put a Turbo on it!!!! 
'95 F-250 Powerstroke, 350,000 Miles, Mods: Phoenix chip, 140V IDM, Diamond Eye DP to 4" straight pipe, CCV mod, Amsoil synthetics throughout.
'04 F-350, XLT Lariat, Powerstroke, CC, Dually, SS exhaust, AirRaid intake and filter, Edge Evolution, PHP FICM programmer.
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