In all actuality, if the 160CC injectors are "stage 1" injectors, you don't NEED custom tunes, but the truck will run like it has the stock AA 90CC injectors. If you plan on using the 160s to their full capacity, you will need the FU2 with custom tunes....or you can simply purchase a Phoenix chip with custom tunes on it.
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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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