Agricultural · ECU Remapping
Challenger Mt400 MT465B 4.4l 91 hp Tuning (2016–)
Factory specification and Stage 1 remap gains for the Challenger Mt400 MT465B 4.4l 91 hp (2016–). A Stage 1 calibration adds 9 BHP and 65 Nm — software only, no hardware modifications required.
| Measure | Original | Stage 1 |
|---|---|---|
Power BHP | 91 | 100Estimated +9 BHP · +10% |
Torque Nm | 455Estimated | 520 +65 Nm · +14% |
+9 BHP
Stage 1 power gain (estimated)
+65 Nm
Stage 1 torque gain (estimated)
Estimated figures are based on engine, ECU and comparable application data. Actual results can vary depending on software version, machine condition and configuration.
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: 91 bhp · 454.9 Nm (peak)
Stage 1: 100 bhp · 519.9 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
Ready to unlock your Challenger Mt400's real performance?
Tell us your machine and registration — we'll confirm support and the exact expected gains for your engine before any work begins.