Yes.
It's not a bad idea to have one anyway because the PCM may still actually command a defuel because of the boost. Your SES light probably won't come on but you can still defuel.
They're reasonably cheap and they're good insurance to having a full-on, no compromise driving experience.
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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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