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Tuning file Trucks Paccar Peterbilt 337 520 567 2009 → 2015 → 2013 → Heavy Duty Medium Duty PX-9 PX-9 8.9L R6 350 hp 1356 Nm (PX-9)

Parameters Standard Chiptuning Difference
BHP 350 hp 420 hp 70 hp
Torque 1356 Nm 1519 Nm 163 Nm
Standard
BHP 350 hp
Torque 1356 Nm
Chiptuning
BHP 420+70 hp
Torque 1519 +163 Nm
Parameters Standard Chiptuning Difference
BHP 350 hp 420 hp 70 hp
Torque 1356 Nm 1519 Nm 163 Nm