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Isuzu Trucks F-Series / Forward FRR / FSR 5.2 4HK1 240hp

2008–2020 · 237 hp · diesel
Stage 1
OriginalAfter tuningDiff
Power hp237 275 +38
Torque Nm765 880 +115
Power gain
+16%
Torque gain
+15%
Fuel economy −9%
Before
15.8 L / 100 km
After tuning
14.4 L / 100 km
Saves ≈ 1.4 L / 100 km — about 1 354 L (over 100 000 km) ≈ €2 369
Estimate for a typical duty cycle · real saving depends on load & driving style
Ready to feel these +38 hp on the road?
Get your ready-to-flash Stage 1 file for the Isuzu Trucks F-Series / Forward
Order tuning file →
Stage 1 file from €120
Exact price depends on the ECU — confirmed when you upload the file
✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included
Power graph / Stage 1
PowerTorqueStock
dyno graph