Cummins QSX 350 14.95L 352hp (259kW) 1607Nm — Stage 1 file (+78 hp)
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Stage 1 file for Cummins QSX 350 14.95L 352hp (259kW) 1607Nm
Target +0 hp. Custom development for your engine.
Chip tuning for Cummins QSX 350 14.95L 352hp (259kW) 1607Nm ECU
Cummins QSX (I) 350 14.95L 352hp (259kW) 1607Nm — industrial diesel engine of the commercial segment of the Cummins Inc. group (США, 1919). Stage 1 chip tuning raises power from 352 to 430 hp (+78 hp, +22%) and torque from 1607 to 1942 Nm (+335 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 top Cummins ISX marks the power ceiling for American trucks. The Cummins CM850/CM870/CM2350 ECUs are a proprietary platform. DPF/SCR with AdBlue is standard on modern Cummins engines.
Cummins confidently reaches Stage 2 with hardware (turbos, injectors). 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 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 QSX 350 14.95L 352hp (259kW) 1607Nm?
Stage 1 for the Cummins QSX 350 14.95L 352hp (259kW) 1607Nm adds +78 hp — power increases from 352 to 430 hp (+22%). Torque rises from 1607 to 1942 Nm (+335 Nm).
What does a Stage 1 remap of the Cummins QSX 350 14.95L 352hp (259kW) 1607Nm include?
Stage 1 is a software optimization of the factory ECU firmware of the Cummins QSX with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed. The gain is +78 hp with no hardware changes.
Does Stage 1 make sense on the Cummins QSX 350 14.95L 352hp (259kW) 1607Nm with this much power?
On the top-spec Cummins QSX 350 14.95L 352hp (259kW) 1607Nm engine, Stage 1 is the starting point before Stage 2 with a downpipe, intake and a larger intercooler. The mass-market factory calibration leaves substantial headroom for an aggressive software tune.
What is Stage 2 for the Cummins QSX 350 14.95L 352hp (259kW) 1607Nm?
Stage 2 for the Cummins QSX 350 14.95L 352hp (259kW) 1607Nm is Stage 1 plus hardware changes: a downpipe, a larger intake and a performance intercooler. The gain is considerably higher, but it requires professional component selection.
Does the factory warranty of the Cummins QSX remain valid after Stage 1?
After remapping the Cummins QSX, 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 QSX?
Reading and writing via OBD takes 25-30 minutes on the Cummins QSX. 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 QSX?
Before Stage 1 the original of the Cummins QSX 350 14.95L 352hp (259kW) 1607Nm is read out and saved — returning to the factory state is possible at any time.
How much does chip tuning the Cummins QSX 350 14.95L 352hp (259kW) 1607Nm cost?
The remap price for the Cummins QSX 350 14.95L 352hp (259kW) 1607Nm is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.