Cars / Vans · ECU Remapping
Dodge Ram 5.7i V8 HEMI 388 hp Tuning (2009–)
Factory specification and Stage 1 remap gains for the Dodge Ram 5.7i V8 HEMI 388 hp (2009–). A Stage 1 calibration adds 12 BHP and 28 Nm — software only, no hardware modifications required.
| Measure | Stock | Stage 1 | E85+ |
|---|---|---|---|
Power BHP | 388 | 400 +12 BHP · +3% | 400 +12 BHP · +3% |
Torque Nm | 542 | 570 +28 Nm · +5% | 570 +28 Nm · +5% |
+12 BHP
Stage 1 power gain
+28 Nm
Stage 1 torque gain
Rolling road
Dyno Graph
Power (BHP, solid) and torque (Nm, dashed) across engine speed (RPM). Peak figures match our database exactly.
Hover / touch the graph
Stock: 388 bhp · 542 Nm (peak)
Stage 1: 400 bhp · 570 Nm (peak)
Tuning tool compatibility
This ECU is listed in 2 of 4 manufacturer compatibility databases.
AutoTuner
Supported
ECU: Continental GPEC2A · Motorola NGC4
Alientech KESS3
Supported
ECU: Siemens/Continental GPEC2A
Magicmotorsport FLEX
Not listed in this manufacturer's data — ask us, coverage updates frequently.
Dimsport New Genius / New Trasdata
Not listed in this manufacturer's 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.
About this remap
Dodge Ram 5.7i V8 HEMI 388 hp Stage 1 — what changes
The Dodge Ram 5.7i V8 HEMI 388 hp (2009–) leaves the factory at 388 BHP and 542 Nm of torque. Manufacturers deliberately detune this engine to separate it from more expensive variants in the range — a Regal Tuning Stage 1 calibration safely recovers that headroom through the ECU alone: no hardware changes, no dyno risk, fully reversible.
Fuelling, boost pressure, ignition and torque limiters are optimised within the safe tolerances of the 5.7i V8 HEMI 388 hp powertrain (petrol). The result is 400 BHP and 570 Nm with factory smoothness, cold-start protection and emissions behaviour retained.
Why Regal Tuning
Verified on the dyno, backed by 20+ years
Every calibration is developed and verified by Regal Tuning on an in-house 4WD dynamometer and proven across a worldwide dealer network. Your file is supplied through the Regal Tuning file portal with full technical support, and the original factory file is always kept so the vehicle can be returned to stock at any time.
Figures shown are for this exact engine variant. Gains depend on vehicle health, fuel quality and conditions — we confirm the expected output for your specific vehicle in writing before work begins.
Dodge Ram 5.7i V8 HEMI 388 hp remap FAQ
How much power does Stage 1 add?
Stage 1 takes the 5.7i V8 HEMI 388 hp to 400 BHP and 570 Nm — a gain of 12 BHP and 28 Nm over stock.
Is Stage 1 safe for this engine?
Yes — software-only calibration within the safe mechanical tolerances of the engine, gearbox and drivetrain, developed and verified on our in-house 4WD dyno.
How do I get this remap?
Request a quote with your vehicle details or registration. Existing customers upload their ECU file through the Regal Tuning file portal for a fast turnaround.
20+ years of ECU calibration
Ready to unlock your Dodge Ram's real performance?
Tell us your vehicle and registration — we'll confirm support and the exact expected gains for your engine before any work begins.