Forgive me for sounding ignorant but we don't have emission testing (Thank Goodness) so I dont know the procedure, but do they actually remove the cover and look at the ECM to make sure there's no chip? cant you leave it tuned to the one you think it will pass on and just remove/hide the cord and switch?
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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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