I recently installed the PHP FICM atlas 80 tune. NO ECM/TCM tuning. truck has afe intake 5" exhaust, egr delete and head studs. Night and day difference from stock. drive more like a gas truck off idle. It will spin the dual 315/70's out back too. For anyone looking into an FICM tune, PHP is the place to go.
PHP Atlas 80
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+1 as I use the PHP Atlas 40 and it's a great addition to my TSD tuning.
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