It is my understanding (and I don't do programmers or 6.4L trucks), but I think you're out of luck for DPF-delete tuning these days. The EPA is starting to collect money from vehicle owners for illegal removal of emissions equipment and the tuning companies are getting hosed for supplying the necessary calibrations to get rid of it.
http://forum.gopowerhungry.com/lates...ps-letter.html
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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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