Cummins ISX All years 385ST 14.95L 387hp (285kW) 2108Nm Stage 1
Takes the 385ST 14.95L 387hp (285kW) 2108Nm from 387hp to 450hp, and 2108Nm to 2387Nm.
Where the gain arrives
Scaled from the manufacturer curve for this engine.
- Standard 387hp
- Remapped 450hp
- Standard 2108Nm
- Remapped 2387Nm
Standard against Stage 1
| Measure | Standard | After | Gain |
|---|---|---|---|
| Power | 387hp | 450hp | up 63 |
| Torque | 2108Nm | 2387Nm | up 279 |
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 385ST 14.95L 387hp (285kW) 2108Nm, 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 385ST 14.95L 387hp (285kW) 2108Nm, and we check the car over before writing to it.
See the full 385ST 14.95L 387hp (285kW) 2108Nm page for every file and figure, the other engines on this ISX, or all Cummins remapping.
Other engines on this ISX
- 400 14.95L 402hp (296kW) 2108Nm (402hp)
- 400 14.95L 402hp (296kW) 1972Nm (402hp)
- 400ST 14.95L 402hp (296kW) 2244Nm (402hp)
- 400 14.95L 402hp (296kW) 2244Nm (402hp)
- 425 14.95L 428hp (315kW) 2244Nm (428hp)
- 425ST 14.95L 428hp (315kW) 2244Nm (428hp)
- 425ST 14.95L 428hp (315kW) 2380Nm (428hp)
- 435 14.95L 437hp (321kW) 1972Nm (437hp)
- 450 14.95L 450hp (331kW) 2108Nm (450hp)
- 450ST 14.95L 452hp (332kW) 2244Nm (452hp)
- 450 14.95L 452hp (332kW) 2244Nm (452hp)
- 465 14.95L 467hp (343kW) 2244Nm (467hp)
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.