Thread: FU or FU2
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Old Tue, September 14th, 2010, 07:13 PM
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The FU calibrations are designed for stock transmissions so your Excursion will shift REALLY hard with an aftermarket valve body and FU tunes.

Be aware as well that your Excursion's PATS (Passive Anti-Theft System) will be disabled unless your PCM is shipped to PHP to be read. The calibrations for your Excursion will then be written with the PATS information present so the PATS will operate like stock.

If you're paying for FU2 tunes, then it would make sense to retain the PATS system.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.