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← Cummins QSX engines

Cummins QSX

I · 425 14.95L 428hp (315kW) 1952Nm
Stage 1
OriginalAfter tuningDiff
Power hp428 510 +82
Torque Nm1952 2390 +438
Power gain
+19%
Torque gain
+22%
Fuel economy −9%
Before
28.5 L / 100 km
After tuning
26.0 L / 100 km
Saves ≈ 2.5 L / 100 km — about 2 501 L (over 100 000 km) ≈ €4 376
Estimate for a typical duty cycle · real saving depends on load & driving style
Ready to feel these +82 hp on the road?
Get your ready-to-flash Stage 1 file for the Cummins QSX
Order tuning file
Original file back-up Delivered in ~30 min Support included
Power graph / Stage 1
PowerTorqueStock
dyno graph