The factory programming has a torque reduction strategy during the shifts. We keep this in place on the towing and daily driving tunes. The performance and race tunes do not have this feature...especially on the 02-03 trucks because of shifting concerns due to transmission hardware changes.
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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.
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