First of all you cant really make a diesel run 'lean' not in the way of a gas motor where it causes detonation and damage, etc.... and yeah I dont understand myself how bill tunes for over 23 psi or so(im sure he can chime in), but i do know that he removes the overboost code so you can get higher boost on the motor without the PCM gettin in the way... :P
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2002 7.3 F250 Supercab Shortbox
DIY intake
CCV dumped
Autometer gauges
WW/ATS 1.0 exhaust housing
Hutch/Harpoon in tank mods/hpX line
AIH delete/ebpv delete
TruCool trans cooler
Straight piped
PHP FU 
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