EFI costs about 800 bucks . Most of the big tuners will send a tune or 2 with it if you buy from them..The best bang for the buck on a duramax is ppe. Efi is just the tuning software so if you dont know how to tune a duramax i would stay away...Look for a ppe tuner.
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 crew cab 4-wheel drive 03 f-250 6 uh oleaker.4 inch staight pipe..12 years of being a diesel tech..i love helping others..feel free to call with any concerns..706-244-4955 got the truck put back to factory tuning the day she rolled of the factory line, TEC3..ficm,tcm,ecm...php is the best 
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