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Old Wed, August 17th, 2011, 08:43 PM
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F-127 F-127 is offline
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You'll be alright with just the FU with a 38r and exhaust. If you do decide to upgrade injectors someday, you can 'upgrade' the FU to a FU2. You will be out about $50 dollars for going the route of FU then FU2 rather than just going the FU2 right way.

Performance wise you might see quicker spoolup, lower EGTs, MPG wise it really comes down to the skinny pedal and driving habits. However, I myself have never driven a 7.3 with a 38r, so last statement is only from what I've read.
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'97 F-250 CCSB 7.3L Auto, Gauges, Modded H2E, 285/200% sticks, 7.3L IC, Stealth Dual HPOP, Pheonix chip
'03 F-250 CCSB 6.0L Auto, Gryphon CTS, FICM tuning by PHP, Powermax