Considering an ECU remap for your Scania Trucks P-Series 420? A Stage 1 remap can take this All diesel engine from 420 BHP to 485 BHP and from 2100 Nm to 2415 Nm of torque (turbocharged). This engine scores 7/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Scania Trucks P-Series can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Scania Trucks P-Serie 420 is a turbocharged diesel engine producing 420 BHP and 2100 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 485 BHP and 2415 Nm — a gain of around 65 BHP (15%) and 315 Nm (15%).
This engine has moderate remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.
Considerations: High tuned torque: check transmission torque capacity and service history.
Fuel economy note: possible improvement with conservative driving.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
| Engine | BHP | Gain |
|---|
| Torque |
|---|
| Gain |
|---|
| Score |
|---|
| 230 | 230 → 265 | +35 | 1050 → 1210 | +160 | Good (7/10) |
| 270 | 270 → 310 | +40 | 1250 → 1440 | +190 | Good (7/10) |
| 280 | 280 → 302 | +22 | 1400 → 1520 | +120 | Moderate (5.5/10) |
| 310 | 310 → 355 | +45 | 1550 → 1785 | +235 | Good (6.5/10) |
| 340 | 340 → 390 | +50 | 1700 → 1955 | +255 | Good (6.5/10) |
| 360 | 360 → 389 | +29 | 1900 → 2150 | +250 | Good (6.5/10) |
| 380 | 380 → 435 | +55 | 1900 → 2185 | +285 | Good (6.5/10) |
| 410 | 410 → 480 | +70 | 2150 → 2550 | +400 | Good (7/10) |
| 450 | 450 → 510 | +60 | 2350 → 2750 | +400 | Good (7/10) |
Get a personalised remap quote for your Scania Trucks P-Series. We'll connect you with a trusted professional in your area.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.
We recommend discussing your specific vehicle with a qualified remap professional before proceeding.
