Stage 1

Cummins ISX All years 475ST 14.95L 477hp (351kW) 2516Nm Stage 1

Takes the 475ST 14.95L 477hp (351kW) 2516Nm from 477hp to 560hp, and 2516Nm to 2770Nm.

+83horsepower
+254newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
015130245460501,5002,5003,5004,500 RPM 015130245460502,0003,5005,000hp RPM
  • Standard 477hp
  • Remapped 560hp
Torque before and after
074814962244299201,5002,5003,5004,500 RPM 074814962244299202,0003,5005,000Nm RPM
  • Standard 2516Nm
  • Remapped 2770Nm

Standard against Stage 1

MeasureStandardAfterGain
Power477hp560hpup 83
Torque2516Nm2770Nmup 254

What Stage 1 involves

Stage 1 is for a standard car with nothing fitted. We read the original file off the ECU, write a calibration developed for the 475ST 14.95L 477hp (351kW) 2516Nm, then road or rolling road test it before handing the car back. Nothing is added and nothing is removed, so it looks and services exactly as it did.

It takes most of a day. We keep your original file, so it can go back to standard at any point. Figures here are for a healthy 475ST 14.95L 477hp (351kW) 2516Nm, and we check the car over before writing to it.

See the full 475ST 14.95L 477hp (351kW) 2516Nm page for every file and figure, the other engines on this ISX, or all Cummins remapping.

Book your ISX Stage 1

We write and test every file at our Aston workshop, on our own rolling road. Ring us with your reg and we will tell you what your car should make before you commit to anything.