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← Cummins QSX engines

Cummins QSX

I · 400 14.95L 407hp (299kW) 1969Nm
Stage 1
OriginalAfter tuningDiff
Power hp407 490 +83
Torque Nm1969 2350 +381
Power gain
+20%
Torque gain
+19%
Fuel economy −9%
Before
27.1 L / 100 km
After tuning
24.7 L / 100 km
Saves ≈ 2.4 L / 100 km — about 2 389 L (over 100 000 km) ≈ €4 180
Estimate for a typical duty cycle · real saving depends on load & driving style
Ready to feel these +83 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