Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm — Stage 1 file (+77 hp)
hp
Stage 1 file for Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm
Target +0 hp. Custom development for your engine.
Chip tuning for Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm ECU
Cummins ISX (I) 425ST 14.95L 428hp (315kW) 2244Nm — industrial diesel engine of the commercial segment of the Cummins Inc. group (США, 1919). Stage 1 chip tuning raises power from 428 to 505 hp (+77 hp, +18%) and torque from 2244 to 2488 Nm (+244 Nm).
The Cummins ECU is a locked platform, tuned through specialised tooling. Cummins is the world leader in heavy-duty diesel-engine production volume. The Cummins ISX is the flagship for Class 8 heavy trucks. The Cummins B-Series, ISX and QSB are the main engine families. The top Cummins ISX marks the power ceiling for American trucks. The Cummins CM850/CM870/CM2350 ECUs are a proprietary platform.
The US Cummins community is the world's largest for Dodge Ram and heavy trucks. Cummins confidently reaches Stage 2 with hardware (turbos, injectors). The Cummins ECU is a locked platform requiring specialised tooling. The top Cummins ISX engines mark the power ceiling of the American truck segment.
Frequently asked questions
What is the Stage 1 effect on the Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm?
After Stage 1 the power of the Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm rises from 428 to 505 hp, a gain of 77 hp (+18%). Torque rises from 2244 to 2488 Nm (+244 Nm).
How does Stage 1 differ from stock on the Cummins ISX?
Stage 1 is a software optimization of the factory ECU firmware of the Cummins ISX with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed. The gain is +77 hp with no hardware changes.
Does Stage 1 make sense on the Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm with this much power?
Stage 1 for the Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm unlocks the potential built in by the factory but artificially capped to meet mass-market targets. A base of 750-800 hp is achievable once hardware is added.
What is Stage 2 for the Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm?
Stage 2 on the Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
Does the factory warranty of the Cummins ISX remain valid after Stage 1?
After remapping the Cummins ISX, the official factory warranty on the engine and gearbox is lost (this applies to any manufacturer when the ECU is modified). CHIPOK guarantees the quality of the calibration and free revisions.
How long is the wait for a Stage 1 remap for the Cummins ISX?
Reading and writing via OBD takes 25-30 minutes on the Cummins ISX. Bench reading (BDM/JTAG) takes about 60 minutes plus refitting. Remote file processing at CHIPOK takes 5-30 minutes.
How do you roll back to the factory firmware of the Cummins ISX?
Before Stage 1 the original of the Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm is read out and saved — returning to the factory state is possible at any time.
How much does chip tuning the Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm cost?
The remap price for the Cummins ISX 425ST 14.95L 428hp (315kW) 2244Nm is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.