Ficm tune, is it for me ?
04 f-550,4x4, k8 super tow pkg. dana 135 4.88 t-lok. 04.5 6.0,auto. I have read most all bills posts on all the psd forums,and have a cts Evo on power level 2. Runs great, truck has new heads and gaskets a year ago, egr delete , cat elc and blue spring. 170k miles, recet hpop, stc, dummies and ipr. Change oil @3k. My ficm is healthy at 48-49.5v. But is dealer programmed.Batteries run at 13.8 v. New m'craft. Is a custom tune and ficm better for my engine/trans.?? Tks.
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