Stage 1

Cummins ISX All years 475 14.95L 477hp (351kW) 2244Nm Stage 1

Takes the 475 14.95L 477hp (351kW) 2244Nm from 477hp to 554hp, and 2244Nm to 2488Nm.

+77horsepower
+244newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
015029944959801,5002,5003,5004,500 RPM 015029944959802,0003,5005,000hp RPM
  • Standard 477hp
  • Remapped 554hp
Torque before and after
067213442015268701,5002,5003,5004,500 RPM 067213442015268702,0003,5005,000Nm RPM
  • Standard 2244Nm
  • Remapped 2488Nm

Standard against Stage 1

MeasureStandardAfterGain
Power477hp554hpup 77
Torque2244Nm2488Nmup 244

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 475 14.95L 477hp (351kW) 2244Nm, 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 475 14.95L 477hp (351kW) 2244Nm, and we check the car over before writing to it.

See the full 475 14.95L 477hp (351kW) 2244Nm 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.