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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 370 hp 1695 Nm (PX-9)

Parameters Standard Chiptuning Difference
BHP 370 hp 444 hp 74 hp
Torque 1695 Nm 1898 Nm 203 Nm
Standard
BHP 370 hp
Torque 1695 Nm
Chiptuning
BHP 444+74 hp
Torque 1898 +203 Nm
Parameters Standard Chiptuning Difference
BHP 370 hp 444 hp 74 hp
Torque 1695 Nm 1898 Nm 203 Nm