I would not be worried about running the canned tunes with Banks exhaust. Just don't hook up to anything more/heavier than you used to and mash the go pedal for minutes on end. Shouldn't be a problem if you drive reasonable. Modified exhaust is only going to help. With diesels, "custom" exhaust does not mean you need "custom" tunes.
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Thomas H.
'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
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