Cummins QSX 525 14.95L 527hp (388kW) 2450Nm — Stage 1 file (+95 hp)
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Stage 1 file for Cummins QSX 525 14.95L 527hp (388kW) 2450Nm
Target +0 hp. Custom development for your engine.
Chip tuning for Cummins QSX 525 14.95L 527hp (388kW) 2450Nm ECU
Cummins QSX (I) 525 14.95L 527hp (388kW) 2450Nm — industrial diesel engine of the commercial segment of the Cummins Inc. group (США, 1919). Stage 1 chip tuning raises power from 527 to 622 hp (+95 hp, +18%) and torque from 2450 to 2892 Nm (+442 Nm).
The Cummins B-Series is an iconic engine line (Dodge Ram, agricultural machinery). 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 CM850/CM870/CM2350 ECUs are a proprietary platform. DPF/SCR with AdBlue is standard on modern Cummins engines. The Cummins B-Series, ISX and QSB are the main engine families.
The Cummins ECU is a locked platform requiring specialised tooling. EFILive, MM3 and MiniMax are the main tools for Cummins (not the standard WinOLS). The US Cummins community is the world's largest for Dodge Ram and heavy trucks. The top Cummins ISX engines mark the power ceiling of the American truck segment.
Frequently asked questions
How much does the power of the Cummins QSX 525 14.95L 527hp (388kW) 2450Nm increase after Stage 1?
The Stage 1 gain for the Cummins QSX 525 14.95L 527hp (388kW) 2450Nm is 95 hp (+18%) over the stock 527 hp, for a total of 622 hp. Torque rises from 2450 to 2892 Nm (+442 Nm).
What is Stage 1 chip tuning for the Cummins QSX?
Stage 1 on the Cummins QSX 525 14.95L 527hp (388kW) 2450Nm is a software ECU calibration with no hardware changes. The key maps (boost/ignition/lambda/torque) are adjusted while factory tolerances are preserved. The gain is +95 hp with no hardware changes.
What does Stage 1 give on the top-spec Cummins QSX 525 14.95L 527hp (388kW) 2450Nm?
Stage 1 for the Cummins QSX 525 14.95L 527hp (388kW) 2450Nm 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.
How does Stage 2 differ from Stage 1 on the Cummins QSX 525 14.95L 527hp (388kW) 2450Nm?
Stage 2 on the Cummins QSX 525 14.95L 527hp (388kW) 2450Nm means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
Does Stage 1 void the warranty on the Cummins QSX?
Stage 1 on the Cummins QSX voids the factory warranty on the engine and transmission — this is standard for all manufacturers. CHIPOK provides its own warranty on the quality of the remap.
How quickly is chip tuning of the Cummins QSX 525 14.95L 527hp (388kW) 2450Nm done?
The full remap cycle for the Cummins QSX — from reading to writing the final file — takes 30-90 minutes depending on the ECU access method. The file is prepared at CHIPOK in 5-30 minutes.
Can you return to stock after Stage 1 on the Cummins QSX?
The original Cummins QSX ECU is always saved before flashing. Rolling back to the factory firmware is done with the same programmer in 25-30 minutes.
How much does Stage 1 cost for the Cummins QSX 525 14.95L 527hp (388kW) 2450Nm?
The cost of Stage 1 for the Cummins QSX 525 14.95L 527hp (388kW) 2450Nm is calculated in the calculator on this page — you select the options (DPF off, EGR off, AdBlue off, DTC off, etc.) and the price is capped by the package Max Price. Payment is by credits (1 cr = 1 €), with no subscriptions.