Increased performance where applicable for stronger acceleration and improved working capability.
STEINBAUER application
Mack ECONODYNE AC-400 Power Module
12.0L
Increase from 400 BHP to 480 BHP and from 1,979 Nm to 2,375 Nm — without ECU remapping.
STEINBAUER performance module for the Mack ECONODYNE AC-400 12.0L, designed to provide increased power and torque while retaining the original ECU programming and factory engine safeguards.
Key benefits
- Up to +25% power and torque increase, depending on application.
- No ECU software overwrite — the STEINBAUER system works alongside the original engine management.
- Injection duration module developed to add performance without generic one-size-fits-all mapping.
- Removable solution that can be removed if required.
- Application-specific development for the individual engine and vehicle or machine application.
- Efficiency — Stronger usable torque can help maintain progress at lower engine speeds with less unnecessary revving, which may support improved fuel efficiency in suitable operating conditions.
Actual fuel consumption depends on vehicle load, operating conditions, terrain and driving or operating style.
Vehicle details
Not sure this is right for your
ECONODYNE AC-400?
Ask STEINBAUER UK →
Learn more about truck tuning →
- Manufacturer
- Mack
- Model
- ECONODYNE AC-400
- Engine
- 12.0L
- Displacement
- 11,949 cc
STEINBAUER
Performance comparison
Power (BHP)
Illustrative truck engine-speed curve
Move across the graph to explore RPM
Standard
400 BHP
STEINBAUER
480 BHP
+80 BHP
Torque (Nm)
Illustrative truck engine-speed curve
Move across the graph to explore RPM
Standard
1,979 Nm
STEINBAUER
2,375 Nm
+396 Nm
STEINBAUER Technology
- External ECU technology — Works alongside the original engine management system without permanently rewriting the factory ECU software.
- Load-dependent performance — Additional power and torque are delivered progressively as engine demand increases.
- Application-specific calibration — Developed specifically for the individual engine and application rather than using a generic universal setting.
Commercial performance
More about STEINBAUER truck tuning →
Built for loaded truck operation
STEINBAUER truck applications focus on usable torque and progressive performance during laden running and sustained commercial operation.
Loaded running
Stronger usable torque when the vehicle is fully laden.
Gradients
Improved pulling performance on hills and demanding routes.
Lower-rev performance
More usable torque can help maintain progress at lower engine speeds, reducing the need for unnecessary revving.
Fleet support
UK application advice, installation and technical aftercare.
Illustrative simulated performance graphic based on published application data. Curves are illustrative and are not measured dyno traces.
Installation guides
Installation instructions for STEINBAUER part number 230146 .
Login required.
Installation guides are available to registered STEINBAUER customers,
dealers and administrators.
Mack ECONODYNE AC-400 tuning and power increase
The STEINBAUER Power Module is designed for drivers and operators looking for a Mack ECONODYNE AC-400 power increase without replacing the factory ECU software. The module works alongside the original engine management system and can be removed to return the vehicle or machine to its standard configuration.
For this application, published performance data shows power increasing from 400 BHP to 480 BHP, with torque increasing from 1,979 Nm to 2,375 Nm.
If you are searching for a Mack ECONODYNE AC-400 tuning module, this page contains the compatible STEINBAUER part number, installation information, performance figures and available accessories for this exact application.
Why choose STEINBAUER?
Intelligent performance technology
Improved pulling power throughout the usable engine speed range.
Original ECU programming and factory engine safety parameters remain active.
The vehicle or machine can be returned to its original factory configuration.