| N14+ Uprateability (hardware required to uprate to the next family) |
| Family 1 | Family 2 | Family 3 |
| 330 | 350 | 370 | 425 | 370ESP | 400 | 410 | 435 | *460 | 435 | 460 | 475 | 500 | 525 |
| Baseline | Software Calibration | Software Calibration |
| | | | | Piston | Injector |
| | | | | Camshaft | |
| | | | | Injector | |
| | | | | Accessory Drive Pulley | |
| | | | | Turbocharger | | | | | |
Notes: |
| 1. Tables are based on advertised horsepower and represent straight, ESP, SmartTorque and Fire Truck ratings. |
| 2. (*) Family Uprate Calibrations for use at time of resale for residual enhancement |
| 3. There is no engine modification charge or refund associated with 'derating' an engine. |
| 4. Uprates are not to violate the driveline manufacturer's or the OEM's cooling package limitations. |
