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Catalog/ Trucks/ Cummins/ QSX
← Cummins QSX engines

Cummins QSX

I · 390 14.95L 371hp (273kW) 1825Nm
Stage 1
OriginalAfter tuningDiff
Power hp371 475 +104
Torque Nm1825 2350 +525
Power gain
+28%
Torque gain
+29%
Fuel economy −9%
Before
24.7 L / 100 km
After tuning
22.6 L / 100 km
Saves ≈ 2.2 L / 100 km — about 2 180 L (over 100 000 km) ≈ €3 816
Estimate for a typical duty cycle · real saving depends on load & driving style
Ready to feel these +104 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