Trucks / HGV · ECU Remapping
Iveco Stralis S42 (Euro 4/5) 420 hp Tuning (2007–)
Factory specification and Stage 1 remap gains for the Iveco Stralis S42 (Euro 4/5) 420 hp (2007–). A Stage 1 calibration adds 65 BHP and 350 Nm — software only, no hardware modifications required.
| Measure | Original | Stage 1 | Stage 2 |
|---|---|---|---|
Power BHP | 420 | 485 +65 BHP · +15% | 495 +75 BHP · +18% |
Torque Nm | 1900 | 2250 +350 Nm · +18% | 2270 +370 Nm · +19% |
+65 BHP
Stage 1 power gain
+350 Nm
Stage 1 torque gain
Power & torque curves
Illustrative Performance Curve
Illustrative curve generated from published/estimated peak figures. This is not an individual rolling-road test. Power (BHP, solid) and torque (Nm, dashed) across engine speed (RPM); peak figures match the published database values.
Hover / touch the graph
Stock: 420 bhp · 1900 Nm (peak)
Stage 1: 485 bhp · 2250 Nm (peak)
Stage 2: 495 bhp · 2270 Nm (peak)
Tuning tool compatibility
This ECU was not found in the manufacturer compatibility databases we cross-reference.
AutoTuner
Not listed
Not found in this manufacturer's published data — ask us, coverage updates frequently.
Alientech KESS3
Not listed
Not found in this manufacturer's published data — ask us, coverage updates frequently.
Magicmotorsport FLEX
Not listed
Not found in this manufacturer's published data — ask us, coverage updates frequently.
Dimsport New Genius / New Trasdata
Not listed
Not found in this manufacturer's published data — ask us, coverage updates frequently.
Existing customers upload their ECU file via the Regal Tuning File Portal. New to Regal? Request a quote first.
20+ years of ECU calibration
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